120521039 has 2 divisors, whose sum is σ = 120521040. Its totient is φ = 120521038.

The previous prime is 120521033. The next prime is 120521069. The reversal of 120521039 is 930125021.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120521039 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120521033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60260519 + 60260520.

It is an arithmetic number, because the mean of its divisors is an integer number (60260520).

Almost surely, 2^120521039 is an apocalyptic number.

120521039 is a deficient number, since it is larger than the sum of its proper divisors (1).

120521039 is an equidigital number, since it uses as much as digits as its factorization.

120521039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 120521039 is about 10978.2074584151. The cubic root of 120521039 is about 493.9552689423.

The spelling of 120521039 in words is "one hundred twenty million, five hundred twenty-one thousand, thirty-nine".