961134856 has 64 divisors (see below), whose sum is σ = 2077747200. Its totient is φ = 412526400.

The previous prime is 961134841. The next prime is 961134917. The reversal of 961134856 is 658431169.

It is a super-2 number, since 2×961134856² = 1847560422836281472, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156891 + ... + 162901.

It is an arithmetic number, because the mean of its divisors is an integer number (32464800).

Almost surely, 2^961134856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 961134856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038873600).

961134856 is an abundant number, since it is smaller than the sum of its proper divisors (1116612344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

961134856 is a wasteful number, since it uses less digits than its factorization.

961134856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6130 (or 6126 counting only the distinct ones).

The product of its digits is 155520, while the sum is 43.

The square root of 961134856 is about 31002.1750204724. The cubic root of 961134856 is about 986.8733982650.

The spelling of 961134856 in words is "nine hundred sixty-one million, one hundred thirty-four thousand, eight hundred fifty-six".