157403539 has 2 divisors, whose sum is σ = 157403540. Its totient is φ = 157403538.

The previous prime is 157403509. The next prime is 157403557. The reversal of 157403539 is 935304751.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 157403539 - 2⁵ = 157403507 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157403498 and 157403507.

It is not a weakly prime, because it can be changed into another prime (157403509) 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, 78701769 + 78701770.

It is an arithmetic number, because the mean of its divisors is an integer number (78701770).

Almost surely, 2^157403539 is an apocalyptic number.

157403539 is a deficient number, since it is larger than the sum of its proper divisors (1).

157403539 is an equidigital number, since it uses as much as digits as its factorization.

157403539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 157403539 is about 12546.0567111742. The cubic root of 157403539 is about 539.9308770690.

The spelling of 157403539 in words is "one hundred fifty-seven million, four hundred three thousand, five hundred thirty-nine".