147821480 has 32 divisors (see below), whose sum is σ = 335836800. Its totient is φ = 58552896.

The previous prime is 147821473. The next prime is 147821489. The reversal of 147821480 is 84128741.

147821480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-5 number, since 5×147821480⁵ (a number of 42 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 147821480.

It is not an unprimeable number, because it can be changed into a prime (147821489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13820 + ... + 22059.

It is an arithmetic number, because the mean of its divisors is an integer number (10494900).

Almost surely, 2^147821480 is an apocalyptic number.

147821480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

147821480 is an abundant number, since it is smaller than the sum of its proper divisors (188015320).

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

147821480 is a wasteful number, since it uses less digits than its factorization.

147821480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35993 (or 35989 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 35.

The square root of 147821480 is about 12158.1857199173. The cubic root of 147821480 is about 528.7444827634.

The spelling of 147821480 in words is "one hundred forty-seven million, eight hundred twenty-one thousand, four hundred eighty".