120993139 has 4 divisors (see below), whose sum is σ = 122124024. Its totient is φ = 119862256.

The previous prime is 120993137. The next prime is 120993151. The reversal of 120993139 is 931399021.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 120993139 - 2¹ = 120993137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120993098 and 120993107.

It is not an unprimeable number, because it can be changed into a prime (120993137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 565282 + ... + 565495.

It is an arithmetic number, because the mean of its divisors is an integer number (30531006).

Almost surely, 2^120993139 is an apocalyptic number.

120993139 is a deficient number, since it is larger than the sum of its proper divisors (1130885).

120993139 is a wasteful number, since it uses less digits than its factorization.

120993139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1130884.

The product of its (nonzero) digits is 13122, while the sum is 37.

The square root of 120993139 is about 10999.6881319427. The cubic root of 120993139 is about 494.5993956341.

The spelling of 120993139 in words is "one hundred twenty million, nine hundred ninety-three thousand, one hundred thirty-nine".