157283697 has 4 divisors (see below), whose sum is σ = 209711600. Its totient is φ = 104855796.

The previous prime is 157283689. The next prime is 157283719. The reversal of 157283697 is 796382751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 157283697 - 2³ = 157283689 is a prime.

It is a super-2 number, since 2×157283697² = 49476322683975618, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157283297) 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, 26213947 + ... + 26213952.

It is an arithmetic number, because the mean of its divisors is an integer number (52427900).

Almost surely, 2^157283697 is an apocalyptic number.

It is an amenable number.

157283697 is a deficient number, since it is larger than the sum of its proper divisors (52427903).

157283697 is an equidigital number, since it uses as much as digits as its factorization.

157283697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52427902.

The product of its digits is 635040, while the sum is 48.

The square root of 157283697 is about 12541.2797193907. The cubic root of 157283697 is about 539.7938136008.

The spelling of 157283697 in words is "one hundred fifty-seven million, two hundred eighty-three thousand, six hundred ninety-seven".