76109149 has 2 divisors, whose sum is σ = 76109150. Its totient is φ = 76109148.

The previous prime is 76109087. The next prime is 76109179. The reversal of 76109149 is 94190167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76003524 + 105625 = 8718^2 + 325^2 .

It is a cyclic number.

It is not a de Polignac number, because 76109149 - 2²⁵ = 42554717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76109179) 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, 38054574 + 38054575.

It is an arithmetic number, because the mean of its divisors is an integer number (38054575).

Almost surely, 2^76109149 is an apocalyptic number.

It is an amenable number.

76109149 is a deficient number, since it is larger than the sum of its proper divisors (1).

76109149 is an equidigital number, since it uses as much as digits as its factorization.

76109149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 76109149 is about 8724.0557655256. The cubic root of 76109149 is about 423.7850403350.

The spelling of 76109149 in words is "seventy-six million, one hundred nine thousand, one hundred forty-nine".