157790339 has 6 divisors (see below), whose sum is σ = 183552084. Its totient is φ = 135248820.

The previous prime is 157790333. The next prime is 157790371. The reversal of 157790339 is 933097751.

It is not a de Polignac number, because 157790339 - 2¹² = 157786243 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157790339.

It is not an unprimeable number, because it can be changed into a prime (157790333) 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 in 5 ways as a sum of consecutive naturals, for example, 1610057 + ... + 1610154.

It is an arithmetic number, because the mean of its divisors is an integer number (30592014).

Almost surely, 2^157790339 is an apocalyptic number.

157790339 is a deficient number, since it is larger than the sum of its proper divisors (25761745).

157790339 is an equidigital number, since it uses as much as digits as its factorization.

157790339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220225 (or 3220218 counting only the distinct ones).

The product of its (nonzero) digits is 178605, while the sum is 44.

The square root of 157790339 is about 12561.4624546667. The cubic root of 157790339 is about 540.3727867134.

The spelling of 157790339 in words is "one hundred fifty-seven million, seven hundred ninety thousand, three hundred thirty-nine".