157244451 has 16 divisors (see below), whose sum is σ = 258042624. Its totient is φ = 82941984.

The previous prime is 157244443. The next prime is 157244497. The reversal of 157244451 is 154442751.

It is not a de Polignac number, because 157244451 - 2³ = 157244443 is a prime.

It is not an unprimeable number, because it can be changed into a prime (157244401) 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, 287721 + ... + 288266.

It is an arithmetic number, because the mean of its divisors is an integer number (16127664).

Almost surely, 2^157244451 is an apocalyptic number.

157244451 is a deficient number, since it is larger than the sum of its proper divisors (100798173).

157244451 is a wasteful number, since it uses less digits than its factorization.

157244451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576010.

The product of its digits is 22400, while the sum is 33.

The square root of 157244451 is about 12539.7149489133. The cubic root of 157244451 is about 539.7489127609.

The spelling of 157244451 in words is "one hundred fifty-seven million, two hundred forty-four thousand, four hundred fifty-one".