120951969 has 4 divisors (see below), whose sum is σ = 161269296. Its totient is φ = 80634644.

The previous prime is 120951913. The next prime is 120951977. The reversal of 120951969 is 969159021.

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.

It is a cyclic number.

It is not a de Polignac number, because 120951969 - 2⁷ = 120951841 is a prime.

It is a super-2 number, since 2×120951969² = 29258757609953922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120951969.

It is not an unprimeable number, because it can be changed into a prime (120951469) 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, 20158659 + ... + 20158664.

It is an arithmetic number, because the mean of its divisors is an integer number (40317324).

Almost surely, 2^120951969 is an apocalyptic number.

It is an amenable number.

120951969 is a deficient number, since it is larger than the sum of its proper divisors (40317327).

120951969 is an equidigital number, since it uses as much as digits as its factorization.

120951969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40317326.

The product of its (nonzero) digits is 43740, while the sum is 42.

The square root of 120951969 is about 10997.8165560260. The cubic root of 120951969 is about 494.5432906150.

The spelling of 120951969 in words is "one hundred twenty million, nine hundred fifty-one thousand, nine hundred sixty-nine".