79134131 has 2 divisors, whose sum is σ = 79134132. Its totient is φ = 79134130.

The previous prime is 79134113. The next prime is 79134137. The reversal of 79134131 is 13143197.

It is a happy number.

Together with previous prime (79134113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (13143197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79134131 - 2⁶ = 79134067 is a prime.

It is a super-2 number, since 2×79134131² = 12524421378250322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 79134094 and 79134103.

It is not a weakly prime, because it can be changed into another prime (79134137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39567065 + 39567066.

It is an arithmetic number, because the mean of its divisors is an integer number (39567066).

Almost surely, 2^79134131 is an apocalyptic number.

79134131 is a deficient number, since it is larger than the sum of its proper divisors (1).

79134131 is an equidigital number, since it uses as much as digits as its factorization.

79134131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 79134131 is about 8895.7366755092. The cubic root of 79134131 is about 429.3267470479.

The spelling of 79134131 in words is "seventy-nine million, one hundred thirty-four thousand, one hundred thirty-one".