961515170 has 32 divisors (see below), whose sum is σ = 2157791616. Its totient is φ = 299692800.

The previous prime is 961515169. The next prime is 961515179. The reversal of 961515170 is 71515169.

It is a happy number.

It is a super-2 number, since 2×961515170² = 1849022844280257800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 961515170.

It is not an unprimeable number, because it can be changed into a prime (961515179) 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, 623591 + ... + 625130.

It is an arithmetic number, because the mean of its divisors is an integer number (67430988).

Almost surely, 2^961515170 is an apocalyptic number.

961515170 is an abundant number, since it is smaller than the sum of its proper divisors (1196276446).

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

961515170 is a wasteful number, since it uses less digits than its factorization.

961515170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248746.

The product of its (nonzero) digits is 9450, while the sum is 35.

The square root of 961515170 is about 31008.3080802549. The cubic root of 961515170 is about 987.0035472841.

The spelling of 961515170 in words is "nine hundred sixty-one million, five hundred fifteen thousand, one hundred seventy".