3157989305 has 8 divisors (see below), whose sum is σ = 3790061952. Its totient is φ = 2526074928.

The previous prime is 3157989299. The next prime is 3157989353. The reversal of 3157989305 is 5039897513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3157989305 - 2²⁰ = 3156940729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9974 + ... + 80096.

It is an arithmetic number, because the mean of its divisors is an integer number (473757744).

Almost surely, 2^3157989305 is an apocalyptic number.

It is an amenable number.

3157989305 is a deficient number, since it is larger than the sum of its proper divisors (632072647).

3157989305 is an equidigital number, since it uses as much as digits as its factorization.

3157989305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79135.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The square root of 3157989305 is about 56195.9901149539. The cubic root of 3157989305 is about 1467.1354747603.

The spelling of 3157989305 in words is "three billion, one hundred fifty-seven million, nine hundred eighty-nine thousand, three hundred five".