9121961 has 8 divisors (see below), whose sum is σ = 9571200. Its totient is φ = 8677152.

The previous prime is 9121951. The next prime is 9121963. The reversal of 9121961 is 1691219.

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 9121961 - 2⁶ = 9121897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9121963) 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, 3581 + ... + 5573.

It is an arithmetic number, because the mean of its divisors is an integer number (1196400).

Almost surely, 2^9121961 is an apocalyptic number.

It is an amenable number.

9121961 is a deficient number, since it is larger than the sum of its proper divisors (449239).

9121961 is a wasteful number, since it uses less digits than its factorization.

9121961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2215.

The product of its digits is 972, while the sum is 29.

The square root of 9121961 is about 3020.2584326511. The cubic root of 9121961 is about 208.9437590482.

The spelling of 9121961 in words is "nine million, one hundred twenty-one thousand, nine hundred sixty-one".