120451550 has 12 divisors (see below), whose sum is σ = 224039976. Its totient is φ = 48180600.

The previous prime is 120451543. The next prime is 120451561. The reversal of 120451550 is 55154021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1204466 + ... + 1204565.

It is an arithmetic number, because the mean of its divisors is an integer number (18669998).

Almost surely, 2^120451550 is an apocalyptic number.

120451550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120451550 is a deficient number, since it is larger than the sum of its proper divisors (103588426).

120451550 is a wasteful number, since it uses less digits than its factorization.

120451550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409043 (or 2409038 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 120451550 is about 10975.0421411492. The cubic root of 120451550 is about 493.8603171759.

The spelling of 120451550 in words is "one hundred twenty million, four hundred fifty-one thousand, five hundred fifty".