238115077 has 2 divisors, whose sum is σ = 238115078. Its totient is φ = 238115076.

The previous prime is 238115057. The next prime is 238115083. The reversal of 238115077 is 770511832.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186978276 + 51136801 = 13674^2 + 7151^2 .

It is a cyclic number.

It is not a de Polignac number, because 238115077 - 2²⁷ = 103897349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (238115057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119057538 + 119057539.

It is an arithmetic number, because the mean of its divisors is an integer number (119057539).

Almost surely, 2^238115077 is an apocalyptic number.

It is an amenable number.

238115077 is a deficient number, since it is larger than the sum of its proper divisors (1).

238115077 is an equidigital number, since it uses as much as digits as its factorization.

238115077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 238115077 is about 15430.9778368061. The cubic root of 238115077 is about 619.8153083245.

The spelling of 238115077 in words is "two hundred thirty-eight million, one hundred fifteen thousand, seventy-seven".