157426517 has 4 divisors (see below), whose sum is σ = 157893996. Its totient is φ = 156959040.

The previous prime is 157426487. The next prime is 157426519. The reversal of 157426517 is 715624751.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91508356 + 65918161 = 9566^2 + 8119^2 .

It is a cyclic number.

It is not a de Polignac number, because 157426517 - 2¹⁰ = 157425493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157426519) 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, 233234 + ... + 233907.

It is an arithmetic number, because the mean of its divisors is an integer number (39473499).

Almost surely, 2^157426517 is an apocalyptic number.

It is an amenable number.

157426517 is a deficient number, since it is larger than the sum of its proper divisors (467479).

157426517 is an equidigital number, since it uses as much as digits as its factorization.

157426517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467478.

The product of its digits is 58800, while the sum is 38.

The square root of 157426517 is about 12546.9724236566. The cubic root of 157426517 is about 539.9571490917.

The spelling of 157426517 in words is "one hundred fifty-seven million, four hundred twenty-six thousand, five hundred seventeen".