120612639 has 8 divisors (see below), whose sum is σ = 183790720. Its totient is φ = 68921496.

The previous prime is 120612631. The next prime is 120612643. The reversal of 120612639 is 936216021.

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

It is not a de Polignac number, because 120612639 - 2³ = 120612631 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120612631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2871709 + ... + 2871750.

It is an arithmetic number, because the mean of its divisors is an integer number (22973840).

Almost surely, 2^120612639 is an apocalyptic number.

120612639 is a deficient number, since it is larger than the sum of its proper divisors (63178081).

120612639 is an equidigital number, since it uses as much as digits as its factorization.

120612639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5743469.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 120612639 is about 10982.3785675053. The cubic root of 120612639 is about 494.0803780656.

The spelling of 120612639 in words is "one hundred twenty million, six hundred twelve thousand, six hundred thirty-nine".