139276967 has 2 divisors, whose sum is σ = 139276968. Its totient is φ = 139276966.

The previous prime is 139276939. The next prime is 139276979. The reversal of 139276967 is 769672931.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139276967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139276567) 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, 69638483 + 69638484.

It is an arithmetic number, because the mean of its divisors is an integer number (69638484).

Almost surely, 2^139276967 is an apocalyptic number.

139276967 is a deficient number, since it is larger than the sum of its proper divisors (1).

139276967 is an equidigital number, since it uses as much as digits as its factorization.

139276967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 857304, while the sum is 50.

The square root of 139276967 is about 11801.5662943526. The cubic root of 139276967 is about 518.3539753454.

The spelling of 139276967 in words is "one hundred thirty-nine million, two hundred seventy-six thousand, nine hundred sixty-seven".