157493253 has 16 divisors (see below), whose sum is σ = 222816960. Its totient is φ = 98608896.

The previous prime is 157493249. The next prime is 157493257. The reversal of 157493253 is 352394751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157493249) and next prime (157493257).

It is not a de Polignac number, because 157493253 - 2² = 157493249 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157493257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22926 + ... + 28992.

It is an arithmetic number, because the mean of its divisors is an integer number (13926060).

Almost surely, 2^157493253 is an apocalyptic number.

It is an amenable number.

157493253 is a deficient number, since it is larger than the sum of its proper divisors (65323707).

157493253 is a wasteful number, since it uses less digits than its factorization.

157493253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6596.

The product of its digits is 113400, while the sum is 39.

The square root of 157493253 is about 12549.6315882180. The cubic root of 157493253 is about 540.0334375728.

The spelling of 157493253 in words is "one hundred fifty-seven million, four hundred ninety-three thousand, two hundred fifty-three".