147420756 has 96 divisors (see below), whose sum is σ = 441056000. Its totient is φ = 41710464.

The previous prime is 147420751. The next prime is 147420761. The reversal of 147420756 is 657024741.

It is an interprime number because it is at equal distance from previous prime (147420751) and next prime (147420761).

It is a super-2 number, since 2×147420756² = 43465758599223072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 147420756.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147420751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81510 + ... + 83298.

Almost surely, 2^147420756 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147420756, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220528000).

147420756 is an abundant number, since it is smaller than the sum of its proper divisors (293635244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

147420756 is a wasteful number, since it uses less digits than its factorization.

147420756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1918 (or 1910 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 147420756 is about 12141.6949393402. The cubic root of 147420756 is about 528.2662654956.

It can be divided in two parts, 147 and 420756, that added together give a triangular number (420903 = T₉₁₇).

The spelling of 147420756 in words is "one hundred forty-seven million, four hundred twenty thousand, seven hundred fifty-six".