157224887 has 2 divisors, whose sum is σ = 157224888. Its totient is φ = 157224886.

The previous prime is 157224833. The next prime is 157224919. The reversal of 157224887 is 788422751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157224887 - 2¹⁰ = 157223863 is a prime.

It is a Chen prime.

It is equal to p_8827586 and since 157224887 and 8827586 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157224827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78612443 + 78612444.

It is an arithmetic number, because the mean of its divisors is an integer number (78612444).

Almost surely, 2^157224887 is an apocalyptic number.

157224887 is a deficient number, since it is larger than the sum of its proper divisors (1).

157224887 is an equidigital number, since it uses as much as digits as its factorization.

157224887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 250880, while the sum is 44.

The square root of 157224887 is about 12538.9348431196. The cubic root of 157224887 is about 539.7265270516.

The spelling of 157224887 in words is "one hundred fifty-seven million, two hundred twenty-four thousand, eight hundred eighty-seven".