77119139 has 2 divisors, whose sum is σ = 77119140. Its totient is φ = 77119138.

The previous prime is 77119129. The next prime is 77119153. The reversal of 77119139 is 93191177.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77119139 - 2²⁴ = 60341923 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (77119109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38559569 + 38559570.

It is an arithmetic number, because the mean of its divisors is an integer number (38559570).

Almost surely, 2^77119139 is an apocalyptic number.

77119139 is a deficient number, since it is larger than the sum of its proper divisors (1).

77119139 is an equidigital number, since it uses as much as digits as its factorization.

77119139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11907, while the sum is 38.

The square root of 77119139 is about 8781.7503380590. The cubic root of 77119139 is about 425.6513914230.

The spelling of 77119139 in words is "seventy-seven million, one hundred nineteen thousand, one hundred thirty-nine".