157688545 has 16 divisors (see below), whose sum is σ = 217698048. Its totient is φ = 107409600.

The previous prime is 157688539. The next prime is 157688551. The reversal of 157688545 is 545886751.

It is an interprime number because it is at equal distance from previous prime (157688539) and next prime (157688551).

It is not a de Polignac number, because 157688545 - 2⁵ = 157688513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9634 + ... + 20203.

It is an arithmetic number, because the mean of its divisors is an integer number (13606128).

Almost surely, 2^157688545 is an apocalyptic number.

It is an amenable number.

157688545 is a deficient number, since it is larger than the sum of its proper divisors (60009503).

157688545 is a wasteful number, since it uses less digits than its factorization.

157688545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30000.

The product of its digits is 1344000, while the sum is 49.

The square root of 157688545 is about 12557.4099638421. The cubic root of 157688545 is about 540.2565596138.

The spelling of 157688545 in words is "one hundred fifty-seven million, six hundred eighty-eight thousand, five hundred forty-five".