237139117 has 2 divisors, whose sum is σ = 237139118. Its totient is φ = 237139116.

The previous prime is 237139081. The next prime is 237139127. The reversal of 237139117 is 711931732.

237139117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138156516 + 98982601 = 11754^2 + 9949^2 .

It is a cyclic number.

It is not a de Polignac number, because 237139117 - 2⁷ = 237138989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (237139127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 118569558 + 118569559.

It is an arithmetic number, because the mean of its divisors is an integer number (118569559).

Almost surely, 2^237139117 is an apocalyptic number.

It is an amenable number.

237139117 is a deficient number, since it is larger than the sum of its proper divisors (1).

237139117 is an equidigital number, since it uses as much as digits as its factorization.

237139117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 34.

The square root of 237139117 is about 15399.3219655932. The cubic root of 237139117 is about 618.9673383765.

The spelling of 237139117 in words is "two hundred thirty-seven million, one hundred thirty-nine thousand, one hundred seventeen".