961121 has 4 divisors (see below), whose sum is σ = 1098432. Its totient is φ = 823812.

The previous prime is 961117. The next prime is 961123. The reversal of 961121 is 121169.

961121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 961121 - 2² = 961117 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 961093 and 961102.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 961121.

It is not an unprimeable number, because it can be changed into a prime (961123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68645 + ... + 68658.

It is an arithmetic number, because the mean of its divisors is an integer number (274608).

2⁹⁶¹¹²¹ is an apocalyptic number.

It is an amenable number.

961121 is a deficient number, since it is larger than the sum of its proper divisors (137311).

961121 is a wasteful number, since it uses less digits than its factorization.

961121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137310.

The product of its digits is 108, while the sum is 20.

The square root of 961121 is about 980.3677881285. The cubic root of 961121 is about 98.6868655891.

It can be divided in two parts, 961 and 121, that multiplied together give a square (116281 = 341²).

The spelling of 961121 in words is "nine hundred sixty-one thousand, one hundred twenty-one".