157924387 has 2 divisors, whose sum is σ = 157924388. Its totient is φ = 157924386.

The previous prime is 157924381. The next prime is 157924451. The reversal of 157924387 is 783429751.

157924387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157924387 - 2³ = 157924379 is a prime.

It is a super-2 number, since 2×157924387² = 49880224018651538, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (157924381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78962193 + 78962194.

It is an arithmetic number, because the mean of its divisors is an integer number (78962194).

Almost surely, 2^157924387 is an apocalyptic number.

157924387 is a deficient number, since it is larger than the sum of its proper divisors (1).

157924387 is an equidigital number, since it uses as much as digits as its factorization.

157924387 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 157924387 is about 12566.7970063975. The cubic root of 157924387 is about 540.5257647923.

The spelling of 157924387 in words is "one hundred fifty-seven million, nine hundred twenty-four thousand, three hundred eighty-seven".