157285746 has 16 divisors (see below), whose sum is σ = 349524000. Its totient is φ = 52428564.

The previous prime is 157285729. The next prime is 157285771. The reversal of 157285746 is 647582751.

157285746 is a `hidden beast` number, since 1 + 5 + 72 + 8 + 574 + 6 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1456296 + ... + 1456403.

It is an arithmetic number, because the mean of its divisors is an integer number (21845250).

Almost surely, 2^157285746 is an apocalyptic number.

157285746 is an abundant number, since it is smaller than the sum of its proper divisors (192238254).

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

157285746 is a wasteful number, since it uses less digits than its factorization.

157285746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912710 (or 2912704 counting only the distinct ones).

The product of its digits is 470400, while the sum is 45.

The square root of 157285746 is about 12541.3614093527. The cubic root of 157285746 is about 539.7961576300.

The spelling of 157285746 in words is "one hundred fifty-seven million, two hundred eighty-five thousand, seven hundred forty-six".