961026121 has 4 divisors (see below), whose sum is σ = 1048392144. Its totient is φ = 873660100.

The previous prime is 961026107. The next prime is 961026163. The reversal of 961026121 is 121620169.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 961026121 - 2²³ = 952637513 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 961026121.

It is not an unprimeable number, because it can be changed into a prime (961026191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43682995 + ... + 43683016.

It is an arithmetic number, because the mean of its divisors is an integer number (262098036).

Almost surely, 2^961026121 is an apocalyptic number.

It is an amenable number.

961026121 is a deficient number, since it is larger than the sum of its proper divisors (87366023).

961026121 is a wasteful number, since it uses less digits than its factorization.

961026121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87366022.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 961026121 is about 31000.4213035888. The cubic root of 961026121 is about 986.8361812448.

The spelling of 961026121 in words is "nine hundred sixty-one million, twenty-six thousand, one hundred twenty-one".