120072146 has 4 divisors (see below), whose sum is σ = 180108222. Its totient is φ = 60036072.

The previous prime is 120072137. The next prime is 120072163. The reversal of 120072146 is 641270021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 105288121 + 14784025 = 10261^2 + 3845^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 30018035 + ... + 30018038.

Almost surely, 2^120072146 is an apocalyptic number.

120072146 is a deficient number, since it is larger than the sum of its proper divisors (60036076).

120072146 is an equidigital number, since it uses as much as digits as its factorization.

120072146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60036075.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 120072146 is about 10957.7436546034. The cubic root of 120072146 is about 493.3412435831.

The spelling of 120072146 in words is "one hundred twenty million, seventy-two thousand, one hundred forty-six".