1080845961 has 16 divisors (see below), whose sum is σ = 1593931584. Its totient is φ = 647158464.

The previous prime is 1080845917. The next prime is 1080845999. The reversal of 1080845961 is 1695480801.

It is not a de Polignac number, because 1080845961 - 2¹⁵ = 1080813193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1080845911) 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, 373071 + ... + 375956.

It is an arithmetic number, because the mean of its divisors is an integer number (99620724).

Almost surely, 2^1080845961 is an apocalyptic number.

It is an amenable number.

1080845961 is a deficient number, since it is larger than the sum of its proper divisors (513085623).

1080845961 is a wasteful number, since it uses less digits than its factorization.

1080845961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749080.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 1080845961 is about 32876.2218175994. The cubic root of 1080845961 is about 1026.2533819740.

The spelling of 1080845961 in words is "one billion, eighty million, eight hundred forty-five thousand, nine hundred sixty-one".