157653137 has 4 divisors (see below), whose sum is σ = 157895220. Its totient is φ = 157411056.

The previous prime is 157653113. The next prime is 157653143. The reversal of 157653137 is 731356751.

It is a Cunningham number, because it is equal to 12556²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731356751 = 457 ⋅1600343.

It can be written as a sum of positive squares in 2 ways, for example, as 36675136 + 120978001 = 6056^2 + 10999^2 .

It is a cyclic number.

It is not a de Polignac number, because 157653137 - 2⁸ = 157652881 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157653137.

It is not an unprimeable number, because it can be changed into a prime (157653107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120062 + ... + 121367.

It is an arithmetic number, because the mean of its divisors is an integer number (39473805).

Almost surely, 2^157653137 is an apocalyptic number.

It is an amenable number.

157653137 is a deficient number, since it is larger than the sum of its proper divisors (242083).

157653137 is an equidigital number, since it uses as much as digits as its factorization.

157653137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242082.

The product of its digits is 66150, while the sum is 38.

The square root of 157653137 is about 12556.0000398216. Note that the first 4 decimals coincide. The cubic root of 157653137 is about 540.2161194828.

The spelling of 157653137 in words is "one hundred fifty-seven million, six hundred fifty-three thousand, one hundred thirty-seven".