147921534 has 24 divisors (see below), whose sum is σ = 320923512. Its totient is φ = 49241520.

The previous prime is 147921511. The next prime is 147921541. The reversal of 147921534 is 435129741.

147921534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9532 + ... + 19664.

It is an arithmetic number, because the mean of its divisors is an integer number (13371813).

Almost surely, 2^147921534 is an apocalyptic number.

147921534 is an abundant number, since it is smaller than the sum of its proper divisors (173001978).

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

147921534 is a wasteful number, since it uses less digits than its factorization.

147921534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10952 (or 10949 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 147921534 is about 12162.2997003034. The cubic root of 147921534 is about 528.8637506556.

The spelling of 147921534 in words is "one hundred forty-seven million, nine hundred twenty-one thousand, five hundred thirty-four".