157704539 has 2 divisors, whose sum is σ = 157704540. Its totient is φ = 157704538.

The previous prime is 157704527. The next prime is 157704571. The reversal of 157704539 is 935407751.

157704539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (935407751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157704539 - 2¹⁶ = 157639003 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157704496 and 157704505.

It is not a weakly prime, because it can be changed into another prime (157704509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78852269 + 78852270.

It is an arithmetic number, because the mean of its divisors is an integer number (78852270).

Almost surely, 2^157704539 is an apocalyptic number.

157704539 is a deficient number, since it is larger than the sum of its proper divisors (1).

157704539 is an equidigital number, since it uses as much as digits as its factorization.

157704539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 157704539 is about 12558.0467828401. The cubic root of 157704539 is about 540.2748246718.

The spelling of 157704539 in words is "one hundred fifty-seven million, seven hundred four thousand, five hundred thirty-nine".