120751161 has 4 divisors (see below), whose sum is σ = 161001552. Its totient is φ = 80500772.

The previous prime is 120751159. The next prime is 120751171. The reversal of 120751161 is 161157021.

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 120751161 - 2¹ = 120751159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120751151) 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, 20125191 + ... + 20125196.

It is an arithmetic number, because the mean of its divisors is an integer number (40250388).

Almost surely, 2^120751161 is an apocalyptic number.

It is an amenable number.

120751161 is a deficient number, since it is larger than the sum of its proper divisors (40250391).

120751161 is an equidigital number, since it uses as much as digits as its factorization.

120751161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40250390.

The product of its (nonzero) digits is 420, while the sum is 24.

The square root of 120751161 is about 10988.6833151202. The cubic root of 120751161 is about 494.2694539319.

The spelling of 120751161 in words is "one hundred twenty million, seven hundred fifty-one thousand, one hundred sixty-one".