120373561 has 8 divisors (see below), whose sum is σ = 150076224. Its totient is φ = 93797520.

The previous prime is 120373529. The next prime is 120373571. The reversal of 120373561 is 165373021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120373561 - 2⁵ = 120373529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120373571) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 781570 + ... + 781723.

It is an arithmetic number, because the mean of its divisors is an integer number (18759528).

Almost surely, 2^120373561 is an apocalyptic number.

120373561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120373561 is a deficient number, since it is larger than the sum of its proper divisors (29702663).

120373561 is a wasteful number, since it uses less digits than its factorization.

120373561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1563311.

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 120373561 is about 10971.4885498733. The cubic root of 120373561 is about 493.7537072627.

The spelling of 120373561 in words is "one hundred twenty million, three hundred seventy-three thousand, five hundred sixty-one".