77214131 has 4 divisors (see below), whose sum is σ = 77250264. Its totient is φ = 77178000.

The previous prime is 77214127. The next prime is 77214139. The reversal of 77214131 is 13141277.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13141277 = 1187 ⋅11071.

It is a cyclic number.

It is not a de Polignac number, because 77214131 - 2² = 77214127 is a prime.

It is a super-2 number, since 2×77214131² = 11924044052170322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77214131.

It is not an unprimeable number, because it can be changed into a prime (77214139) 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 in 3 ways as a sum of consecutive naturals, for example, 14645 + ... + 19206.

It is an arithmetic number, because the mean of its divisors is an integer number (19312566).

Almost surely, 2^77214131 is an apocalyptic number.

77214131 is a deficient number, since it is larger than the sum of its proper divisors (36133).

77214131 is a wasteful number, since it uses less digits than its factorization.

77214131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36132.

The product of its digits is 1176, while the sum is 26.

The square root of 77214131 is about 8787.1571625868. The cubic root of 77214131 is about 425.8260860036.

The spelling of 77214131 in words is "seventy-seven million, two hundred fourteen thousand, one hundred thirty-one".