157720883 has 6 divisors (see below), whose sum is σ = 167544636. Its totient is φ = 148442912.

The previous prime is 157720873. The next prime is 157720897. The reversal of 157720883 is 388027751.

It is not a de Polignac number, because 157720883 - 2⁸ = 157720627 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 157720883.

It is not an unprimeable number, because it can be changed into a prime (157720853) 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, 272585 + ... + 273162.

It is an arithmetic number, because the mean of its divisors is an integer number (27924106).

Almost surely, 2^157720883 is an apocalyptic number.

157720883 is a deficient number, since it is larger than the sum of its proper divisors (9823753).

157720883 is an equidigital number, since it uses as much as digits as its factorization.

157720883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545781 (or 545764 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 157720883 is about 12558.6975041204. The cubic root of 157720883 is about 540.2934881522.

The spelling of 157720883 in words is "one hundred fifty-seven million, seven hundred twenty thousand, eight hundred eighty-three".