234187957 has 2 divisors, whose sum is σ = 234187958. Its totient is φ = 234187956.

The previous prime is 234187931. The next prime is 234187991. The reversal of 234187957 is 759781432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181683441 + 52504516 = 13479^2 + 7246^2 .

It is a cyclic number.

It is not a de Polignac number, because 234187957 - 2⁷ = 234187829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234187997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117093978 + 117093979.

It is an arithmetic number, because the mean of its divisors is an integer number (117093979).

Almost surely, 2^234187957 is an apocalyptic number.

It is an amenable number.

234187957 is a deficient number, since it is larger than the sum of its proper divisors (1).

234187957 is an equidigital number, since it uses as much as digits as its factorization.

234187957 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 234187957 is about 15303.2008743269. The cubic root of 234187957 is about 616.3889615267.

It can be divided in two parts, 23418 and 7957, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 234187957 in words is "two hundred thirty-four million, one hundred eighty-seven thousand, nine hundred fifty-seven".