157344785 has 8 divisors (see below), whose sum is σ = 203337960. Its totient is φ = 116193024.

The previous prime is 157344773. The next prime is 157344793. The reversal of 157344785 is 587443751.

It can be written as a sum of positive squares in 4 ways, for example, as 494209 + 156850576 = 703^2 + 12524^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157344785 - 2²⁴ = 140567569 is a prime.

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, 1210280 + ... + 1210409.

It is an arithmetic number, because the mean of its divisors is an integer number (25417245).

Almost surely, 2^157344785 is an apocalyptic number.

It is an amenable number.

157344785 is a deficient number, since it is larger than the sum of its proper divisors (45993175).

157344785 is a wasteful number, since it uses less digits than its factorization.

157344785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420707.

The product of its digits is 470400, while the sum is 44.

The square root of 157344785 is about 12543.7149600906. The cubic root of 157344785 is about 539.8636887308.

The spelling of 157344785 in words is "one hundred fifty-seven million, three hundred forty-four thousand, seven hundred eighty-five".