157839419 has 2 divisors, whose sum is σ = 157839420. Its totient is φ = 157839418.

The previous prime is 157839413. The next prime is 157839427. The reversal of 157839419 is 914938751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157839419 - 2⁸ = 157839163 is a prime.

It is a super-2 number, since 2×157839419² = 49826564380515122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (157839413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78919709 + 78919710.

It is an arithmetic number, because the mean of its divisors is an integer number (78919710).

Almost surely, 2^157839419 is an apocalyptic number.

157839419 is a deficient number, since it is larger than the sum of its proper divisors (1).

157839419 is an equidigital number, since it uses as much as digits as its factorization.

157839419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 272160, while the sum is 47.

The square root of 157839419 is about 12563.4158969605. The cubic root of 157839419 is about 540.4288077753.

The spelling of 157839419 in words is "one hundred fifty-seven million, eight hundred thirty-nine thousand, four hundred nineteen".