120946721 has 8 divisors (see below), whose sum is σ = 146355840. Its totient is φ = 97570368.

The previous prime is 120946711. The next prime is 120946729. The reversal of 120946721 is 127649021.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-120946721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120946729) 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, 508061 + ... + 508298.

It is an arithmetic number, because the mean of its divisors is an integer number (18294480).

Almost surely, 2^120946721 is an apocalyptic number.

It is an amenable number.

120946721 is a deficient number, since it is larger than the sum of its proper divisors (25409119).

120946721 is a wasteful number, since it uses less digits than its factorization.

120946721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1016383.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 120946721 is about 10997.5779606239. The cubic root of 120946721 is about 494.5361379115.

The spelling of 120946721 in words is "one hundred twenty million, nine hundred forty-six thousand, seven hundred twenty-one".