961415955 has 24 divisors (see below), whose sum is σ = 1711496592. Its totient is φ = 498896064.

The previous prime is 961415933. The next prime is 961415963. The reversal of 961415955 is 559514169.

It is a happy number.

It is not a de Polignac number, because 961415955 - 2¹¹ = 961413907 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 961415955.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 287049 + ... + 290378.

It is an arithmetic number, because the mean of its divisors is an integer number (71312358).

Almost surely, 2^961415955 is an apocalyptic number.

961415955 is a deficient number, since it is larger than the sum of its proper divisors (750080637).

961415955 is a wasteful number, since it uses less digits than its factorization.

961415955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 577475 (or 577472 counting only the distinct ones).

The product of its digits is 243000, while the sum is 45.

The square root of 961415955 is about 31006.7082258017. The cubic root of 961415955 is about 986.9695977677.

The spelling of 961415955 in words is "nine hundred sixty-one million, four hundred fifteen thousand, nine hundred fifty-five".