961326121 has 8 divisors (see below), whose sum is σ = 1098929664. Its totient is φ = 823790400.

The previous prime is 961326083. The next prime is 961326127. The reversal of 961326121 is 121623169.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961326121 - 2⁷ = 961325993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (961326127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18321 + ... + 47521.

It is an arithmetic number, because the mean of its divisors is an integer number (137366208).

Almost surely, 2^961326121 is an apocalyptic number.

It is an amenable number.

961326121 is a deficient number, since it is larger than the sum of its proper divisors (137603543).

961326121 is a wasteful number, since it uses less digits than its factorization.

961326121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33911.

The product of its digits is 3888, while the sum is 31.

The square root of 961326121 is about 31005.2595699504. The cubic root of 961326121 is about 986.9388562390.

The spelling of 961326121 in words is "nine hundred sixty-one million, three hundred twenty-six thousand, one hundred twenty-one".