147455840 has 144 divisors (see below), whose sum is σ = 414390816. Its totient is φ = 48568320.

The previous prime is 147455837. The next prime is 147455857. The reversal of 147455840 is 48554741.

147455840 = T₁ + T₂ + ... + T₉₅₉.

147455840 is a nontrivial binomial coefficient, being equal to C(961, 3).

It is a junction number, because it is equal to n+sod(n) for n = 147455794 and 147455803.

It is a congruent number.

It is an unprimeable number.

It is the 959-th tetrahedral number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1076252 + ... + 1076388.

It is an arithmetic number, because the mean of its divisors is an integer number (2877714).

Almost surely, 2^147455840 is an apocalyptic number.

147455840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147455840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207195408).

147455840 is an abundant number, since it is smaller than the sum of its proper divisors (266934976).

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

147455840 is a wasteful number, since it uses less digits than its factorization.

147455840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 182 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 38.

The square root of 147455840 is about 12143.1396269663. The cubic root of 147455840 is about 528.3081687393.

The spelling of 147455840 in words is "one hundred forty-seven million, four hundred fifty-five thousand, eight hundred forty".