76549138 has 16 divisors (see below), whose sum is σ = 121943520. Its totient is φ = 35937216.

The previous prime is 76549117. The next prime is 76549139. The reversal of 76549138 is 83194567.

It is a junction number, because it is equal to n+sod(n) for n = 76549094 and 76549103.

It is not an unprimeable number, because it can be changed into a prime (76549139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4620 + ... + 13207.

It is an arithmetic number, because the mean of its divisors is an integer number (7621470).

Almost surely, 2^76549138 is an apocalyptic number.

76549138 is a deficient number, since it is larger than the sum of its proper divisors (45394382).

76549138 is a wasteful number, since it uses less digits than its factorization.

76549138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17961.

The product of its digits is 181440, while the sum is 43.

The square root of 76549138 is about 8749.2364238258. The cubic root of 76549138 is about 424.6001092047.

The spelling of 76549138 in words is "seventy-six million, five hundred forty-nine thousand, one hundred thirty-eight".