120155408 has 10 divisors (see below), whose sum is σ = 232801134. Its totient is φ = 60077696.

The previous prime is 120155407. The next prime is 120155417. The reversal of 120155408 is 804551021.

It can be written as a sum of positive squares in only one way, i.e., 73479184 + 46676224 = 8572^2 + 6832^2 .

It is not an unprimeable number, because it can be changed into a prime (120155407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3754841 + ... + 3754872.

Almost surely, 2^120155408 is an apocalyptic number.

It is an amenable number.

120155408 is a deficient number, since it is larger than the sum of its proper divisors (112645726).

120155408 is an equidigital number, since it uses as much as digits as its factorization.

120155408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7509721 (or 7509715 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 120155408 is about 10961.5422272598. The cubic root of 120155408 is about 493.4552502839.

The spelling of 120155408 in words is "one hundred twenty million, one hundred fifty-five thousand, four hundred eight".