157785354 has 16 divisors (see below), whose sum is σ = 350634240. Its totient is φ = 52595100.

The previous prime is 157785349. The next prime is 157785389. The reversal of 157785354 is 453587751.

It is a happy number.

157785354 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1460922 + ... + 1461029.

It is an arithmetic number, because the mean of its divisors is an integer number (21914640).

Almost surely, 2^157785354 is an apocalyptic number.

157785354 is an abundant number, since it is smaller than the sum of its proper divisors (192848886).

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

157785354 is a wasteful number, since it uses less digits than its factorization.

157785354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2921962 (or 2921956 counting only the distinct ones).

The product of its digits is 588000, while the sum is 45.

The square root of 157785354 is about 12561.2640287512. The cubic root of 157785354 is about 540.3670960678.

The spelling of 157785354 in words is "one hundred fifty-seven million, seven hundred eighty-five thousand, three hundred fifty-four".