157023969 has 8 divisors (see below), whose sum is σ = 210576192. Its totient is φ = 104077200.

The previous prime is 157023941. The next prime is 157023989. The reversal of 157023969 is 969320751.

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

It is not a de Polignac number, because 157023969 - 2¹³ = 157015777 is a prime.

It is a super-2 number, since 2×157023969² = 49313053681025922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157023969.

It is not an unprimeable number, because it can be changed into a prime (157023929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150757 + ... + 151794.

It is an arithmetic number, because the mean of its divisors is an integer number (26322024).

Almost surely, 2^157023969 is an apocalyptic number.

It is an amenable number.

157023969 is a deficient number, since it is larger than the sum of its proper divisors (53552223).

157023969 is a wasteful number, since it uses less digits than its factorization.

157023969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302727.

The product of its (nonzero) digits is 102060, while the sum is 42.

The square root of 157023969 is about 12530.9205168655. The cubic root of 157023969 is about 539.4965231774.

The spelling of 157023969 in words is "one hundred fifty-seven million, twenty-three thousand, nine hundred sixty-nine".