120139371 has 12 divisors (see below), whose sum is σ = 189310680. Its totient is φ = 72811680.

The previous prime is 120139361. The next prime is 120139403. The reversal of 120139371 is 173931021.

120139371 is a `hidden beast` number, since 1 + 201 + 393 + 71 = 666.

It is not a de Polignac number, because 120139371 - 2⁹ = 120138859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (120139301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 606666 + ... + 606863.

It is an arithmetic number, because the mean of its divisors is an integer number (15775890).

Almost surely, 2^120139371 is an apocalyptic number.

120139371 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120139371 is a deficient number, since it is larger than the sum of its proper divisors (69171309).

120139371 is a wasteful number, since it uses less digits than its factorization.

120139371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213546 (or 1213543 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 120139371 is about 10960.8106908203. The cubic root of 120139371 is about 493.4332956778.

The spelling of 120139371 in words is "one hundred twenty million, one hundred thirty-nine thousand, three hundred seventy-one".