120722137 has 4 divisors (see below), whose sum is σ = 120744576. Its totient is φ = 120699700.

The previous prime is 120722093. The next prime is 120722149. The reversal of 120722137 is 731227021.

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 120722137 - 2¹⁹ = 120197849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120722177) 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 3 ways as a sum of consecutive naturals, for example, 2208 + ... + 15694.

It is an arithmetic number, because the mean of its divisors is an integer number (30186144).

Almost surely, 2^120722137 is an apocalyptic number.

It is an amenable number.

120722137 is a deficient number, since it is larger than the sum of its proper divisors (22439).

120722137 is an equidigital number, since it uses as much as digits as its factorization.

120722137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22438.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 120722137 is about 10987.3626043742. The cubic root of 120722137 is about 494.2298495476.

Adding to 120722137 its reverse (731227021), we get a palindrome (851949158).

The spelling of 120722137 in words is "one hundred twenty million, seven hundred twenty-two thousand, one hundred thirty-seven".