961115975 has 12 divisors (see below), whose sum is σ = 1206872160. Its totient is φ = 759158400.

The previous prime is 961115933. The next prime is 961115983. The reversal of 961115975 is 579511169.

It is not a de Polignac number, because 961115975 - 2²⁰ = 960067399 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241346 + ... + 245295.

It is an arithmetic number, because the mean of its divisors is an integer number (100572680).

Almost surely, 2^961115975 is an apocalyptic number.

961115975 is a deficient number, since it is larger than the sum of its proper divisors (245756185).

961115975 is a wasteful number, since it uses less digits than its factorization.

961115975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486730 (or 486725 counting only the distinct ones).

The product of its digits is 85050, while the sum is 44.

The square root of 961115975 is about 31001.8705080839. The cubic root of 961115975 is about 986.8669360158.

The spelling of 961115975 in words is "nine hundred sixty-one million, one hundred fifteen thousand, nine hundred seventy-five".