961935081 has 16 divisors (see below), whose sum is σ = 1298396160. Its totient is φ = 633430800.

The previous prime is 961935067. The next prime is 961935103. The reversal of 961935081 is 180539169.

It is not a de Polignac number, because 961935081 - 2¹⁸ = 961672937 is a prime.

It is a super-2 number, since 2×961935081² = 1850638200116953122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (961935011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75156 + ... + 87018.

It is an arithmetic number, because the mean of its divisors is an integer number (81149760).

Almost surely, 2^961935081 is an apocalyptic number.

It is an amenable number.

961935081 is a deficient number, since it is larger than the sum of its proper divisors (336461079).

961935081 is a wasteful number, since it uses less digits than its factorization.

961935081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12196.

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 961935081 is about 31015.0782846022. The cubic root of 961935081 is about 987.1472071178.

The spelling of 961935081 in words is "nine hundred sixty-one million, nine hundred thirty-five thousand, eighty-one".