157224589 has 4 divisors (see below), whose sum is σ = 157929856. Its totient is φ = 156519324.

The previous prime is 157224569. The next prime is 157224593. The reversal of 157224589 is 985422751.

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 a cyclic number.

It is not a de Polignac number, because 157224589 - 2²⁷ = 23006861 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 (157224539) 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, 352299 + ... + 352744.

It is an arithmetic number, because the mean of its divisors is an integer number (39482464).

Almost surely, 2^157224589 is an apocalyptic number.

It is an amenable number.

157224589 is a deficient number, since it is larger than the sum of its proper divisors (705267).

157224589 is an equidigital number, since it uses as much as digits as its factorization.

157224589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705266.

The product of its digits is 201600, while the sum is 43.

The square root of 157224589 is about 12538.9229601270. The cubic root of 157224589 is about 539.7261860568.

The spelling of 157224589 in words is "one hundred fifty-seven million, two hundred twenty-four thousand, five hundred eighty-nine".