157356839 has 2 divisors, whose sum is σ = 157356840. Its totient is φ = 157356838.

The previous prime is 157356817. The next prime is 157356847. The reversal of 157356839 is 938653751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157356839 - 2²⁰ = 156308263 is a prime.

It is a super-2 number, since 2×157356839² = 49522349560143842, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 157356793 and 157356802.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157356809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78678419 + 78678420.

It is an arithmetic number, because the mean of its divisors is an integer number (78678420).

Almost surely, 2^157356839 is an apocalyptic number.

157356839 is a deficient number, since it is larger than the sum of its proper divisors (1).

157356839 is an equidigital number, since it uses as much as digits as its factorization.

157356839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 680400, while the sum is 47.

The square root of 157356839 is about 12544.1954305567. The cubic root of 157356839 is about 539.8774744874.

The spelling of 157356839 in words is "one hundred fifty-seven million, three hundred fifty-six thousand, eight hundred thirty-nine".