157046639 has 2 divisors, whose sum is σ = 157046640. Its totient is φ = 157046638.

The previous prime is 157046623. The next prime is 157046677. The reversal of 157046639 is 936640751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157046639 - 2⁴ = 157046623 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157046596 and 157046605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157046689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78523319 + 78523320.

It is an arithmetic number, because the mean of its divisors is an integer number (78523320).

Almost surely, 2^157046639 is an apocalyptic number.

157046639 is a deficient number, since it is larger than the sum of its proper divisors (1).

157046639 is an equidigital number, since it uses as much as digits as its factorization.

157046639 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 136080, while the sum is 41.

The square root of 157046639 is about 12531.8250466562. The cubic root of 157046639 is about 539.5224848140.

The spelling of 157046639 in words is "one hundred fifty-seven million, forty-six thousand, six hundred thirty-nine".