120173949 has 96 divisors (see below), whose sum is σ = 221405184. Its totient is φ = 63685440.

The previous prime is 120173909. The next prime is 120173951. The reversal of 120173949 is 949371021.

It is not a de Polignac number, because 120173949 - 2⁹ = 120173437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120173909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2267407 + ... + 2267459.

It is an arithmetic number, because the mean of its divisors is an integer number (2306304).

Almost surely, 2^120173949 is an apocalyptic number.

It is an amenable number.

120173949 is a deficient number, since it is larger than the sum of its proper divisors (101231235).

120173949 is an equidigital number, since it uses as much as digits as its factorization.

120173949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 120173949 is about 10962.3879241705. The cubic root of 120173949 is about 493.4806304239.

The spelling of 120173949 in words is "one hundred twenty million, one hundred seventy-three thousand, nine hundred forty-nine".