120100139 has 2 divisors, whose sum is σ = 120100140. Its totient is φ = 120100138.

The previous prime is 120100103. The next prime is 120100147. The reversal of 120100139 is 931001021.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120100139 is a prime.

It is not a weakly prime, because it can be changed into another prime (120100199) 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 as a sum of consecutive naturals, namely, 60050069 + 60050070.

It is an arithmetic number, because the mean of its divisors is an integer number (60050070).

Almost surely, 2^120100139 is an apocalyptic number.

120100139 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100139 is an equidigital number, since it uses as much as digits as its factorization.

120100139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 120100139 is about 10959.0208960472. The cubic root of 120100139 is about 493.3795789474.

The spelling of 120100139 in words is "one hundred twenty million, one hundred thousand, one hundred thirty-nine".