1913161089 has 16 divisors (see below), whose sum is σ = 2944160640. Its totient is φ = 1082409600.

The previous prime is 1913161069. The next prime is 1913161097. The reversal of 1913161089 is 9801613191.

It is not a de Polignac number, because 1913161089 - 2⁵ = 1913161057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1913161049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448884 + ... + 453125.

It is an arithmetic number, because the mean of its divisors is an integer number (184010040).

Almost surely, 2^1913161089 is an apocalyptic number.

It is an amenable number.

1913161089 is a deficient number, since it is larger than the sum of its proper divisors (1030999551).

1913161089 is a wasteful number, since it uses less digits than its factorization.

1913161089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902120.

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 1913161089 is about 43739.6969468239. The cubic root of 1913161089 is about 1241.4155463350.

The spelling of 1913161089 in words is "one billion, nine hundred thirteen million, one hundred sixty-one thousand, eighty-nine".