157294439 has 2 divisors, whose sum is σ = 157294440. Its totient is φ = 157294438.

The previous prime is 157294427. The next prime is 157294457. The reversal of 157294439 is 934492751.

157294439 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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157294439 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157294439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157294469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78647219 + 78647220.

It is an arithmetic number, because the mean of its divisors is an integer number (78647220).

Almost surely, 2^157294439 is an apocalyptic number.

157294439 is a deficient number, since it is larger than the sum of its proper divisors (1).

157294439 is an equidigital number, since it uses as much as digits as its factorization.

157294439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 157294439 is about 12541.7079777836. The cubic root of 157294439 is about 539.8061020818.

The spelling of 157294439 in words is "one hundred fifty-seven million, two hundred ninety-four thousand, four hundred thirty-nine".