139120937 has 2 divisors, whose sum is σ = 139120938. Its totient is φ = 139120936.

The previous prime is 139120921. The next prime is 139121009. The reversal of 139120937 is 739021931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86471401 + 52649536 = 9299^2 + 7256^2 .

It is a cyclic number.

It is not a de Polignac number, because 139120937 - 2⁴ = 139120921 is a prime.

It is a super-2 number, since 2×139120937² = 38709270223515938, which contains 22 as substring.

It is a Chen prime.

It is equal to p_7865243 and since 139120937 and 7865243 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 139120897 and 139120906.

It is not a weakly prime, because it can be changed into another prime (139120637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69560468 + 69560469.

It is an arithmetic number, because the mean of its divisors is an integer number (69560469).

Almost surely, 2^139120937 is an apocalyptic number.

It is an amenable number.

139120937 is a deficient number, since it is larger than the sum of its proper divisors (1).

139120937 is an equidigital number, since it uses as much as digits as its factorization.

139120937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 139120937 is about 11794.9538786720. The cubic root of 139120937 is about 518.1603348275.

The spelling of 139120937 in words is "one hundred thirty-nine million, one hundred twenty thousand, nine hundred thirty-seven".