120695621 has 4 divisors (see below), whose sum is σ = 120717600. Its totient is φ = 120673644.

The previous prime is 120695611. The next prime is 120695633. The reversal of 120695621 is 126596021.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 120695621 - 2⁶ = 120695557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120695611) 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, 5120 + ... + 16358.

It is an arithmetic number, because the mean of its divisors is an integer number (30179400).

Almost surely, 2^120695621 is an apocalyptic number.

It is an amenable number.

120695621 is a deficient number, since it is larger than the sum of its proper divisors (21979).

120695621 is a wasteful number, since it uses less digits than its factorization.

120695621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21978.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 120695621 is about 10986.1558791053. The cubic root of 120695621 is about 494.1936618784.

The spelling of 120695621 in words is "one hundred twenty million, six hundred ninety-five thousand, six hundred twenty-one".