101157239 has 2 divisors, whose sum is σ = 101157240. Its totient is φ = 101157238.

The previous prime is 101157193. The next prime is 101157253. The reversal of 101157239 is 932751101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101157239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101157269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50578619 + 50578620.

It is an arithmetic number, because the mean of its divisors is an integer number (50578620).

Almost surely, 2^101157239 is an apocalyptic number.

101157239 is a deficient number, since it is larger than the sum of its proper divisors (1).

101157239 is an equidigital number, since it uses as much as digits as its factorization.

101157239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 29.

The square root of 101157239 is about 10057.6955113982. The cubic root of 101157239 is about 465.9424966038.

The spelling of 101157239 in words is "one hundred one million, one hundred fifty-seven thousand, two hundred thirty-nine".