239427157 has 2 divisors, whose sum is σ = 239427158. Its totient is φ = 239427156.

The previous prime is 239427119. The next prime is 239427163. The reversal of 239427157 is 751724932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 238578916 + 848241 = 15446^2 + 921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239427157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (239428157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119713578 + 119713579.

It is an arithmetic number, because the mean of its divisors is an integer number (119713579).

Almost surely, 2^239427157 is an apocalyptic number.

It is an amenable number.

239427157 is a deficient number, since it is larger than the sum of its proper divisors (1).

239427157 is an equidigital number, since it uses as much as digits as its factorization.

239427157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 239427157 is about 15473.4339110619. The cubic root of 239427157 is about 620.9516749597.

The spelling of 239427157 in words is "two hundred thirty-nine million, four hundred twenty-seven thousand, one hundred fifty-seven".