120722145 has 16 divisors (see below), whose sum is σ = 193295040. Its totient is φ = 64338624.

The previous prime is 120722093. The next prime is 120722149. The reversal of 120722145 is 541227021.

It is not a de Polignac number, because 120722145 - 2¹² = 120718049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120722149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32262 + ... + 35808.

It is an arithmetic number, because the mean of its divisors is an integer number (12080940).

Almost surely, 2^120722145 is an apocalyptic number.

120722145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120722145 is a deficient number, since it is larger than the sum of its proper divisors (72572895).

120722145 is a wasteful number, since it uses less digits than its factorization.

120722145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5824.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 120722145 is about 10987.3629684288. The cubic root of 120722145 is about 494.2298604648.

Adding to 120722145 its reverse (541227021), we get a palindrome (661949166).

The spelling of 120722145 in words is "one hundred twenty million, seven hundred twenty-two thousand, one hundred forty-five".