120722631 has 8 divisors (see below), whose sum is σ = 162044400. Its totient is φ = 79941312.

The previous prime is 120722603. The next prime is 120722633. The reversal of 120722631 is 136227021.

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-120722631 is a prime.

It is a super-2 number, since 2×120722631² = 29147907271124322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120722633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134590 + ... + 135483.

It is an arithmetic number, because the mean of its divisors is an integer number (20255550).

Almost surely, 2^120722631 is an apocalyptic number.

120722631 is a deficient number, since it is larger than the sum of its proper divisors (41321769).

120722631 is a wasteful number, since it uses less digits than its factorization.

120722631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270225.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 120722631 is about 10987.3850847233. The cubic root of 120722631 is about 494.2305236830.

Adding to 120722631 its reverse (136227021), we get a palindrome (256949652).

The spelling of 120722631 in words is "one hundred twenty million, seven hundred twenty-two thousand, six hundred thirty-one".