120156723 has 16 divisors (see below), whose sum is σ = 182822560. Its totient is φ = 77938848.

The previous prime is 120156721. The next prime is 120156727. The reversal of 120156723 is 327651021.

It is a happy number.

It is not a de Polignac number, because 120156723 - 2¹ = 120156721 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120156721) 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, 59140 + ... + 61137.

It is an arithmetic number, because the mean of its divisors is an integer number (11426410).

Almost surely, 2^120156723 is an apocalyptic number.

120156723 is a deficient number, since it is larger than the sum of its proper divisors (62665837).

120156723 is a wasteful number, since it uses less digits than its factorization.

120156723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120323 (or 120317 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 120156723 is about 10961.6022095312. The cubic root of 120156723 is about 493.4570504284.

The spelling of 120156723 in words is "one hundred twenty million, one hundred fifty-six thousand, seven hundred twenty-three".