157683839 has 2 divisors, whose sum is σ = 157683840. Its totient is φ = 157683838.

The previous prime is 157683821. The next prime is 157683853. The reversal of 157683839 is 938386751.

It is a happy number.

157683839 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 is a cyclic number.

It is not a de Polignac number, because 157683839 - 2⁸ = 157683583 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157683809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78841919 + 78841920.

It is an arithmetic number, because the mean of its divisors is an integer number (78841920).

Almost surely, 2^157683839 is an apocalyptic number.

157683839 is a deficient number, since it is larger than the sum of its proper divisors (1).

157683839 is an equidigital number, since it uses as much as digits as its factorization.

157683839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 50.

The square root of 157683839 is about 12557.2225830396. Note that the first 3 decimals coincide. The cubic root of 157683839 is about 540.2511851531.

The spelling of 157683839 in words is "one hundred fifty-seven million, six hundred eighty-three thousand, eight hundred thirty-nine".