136879111 has 2 divisors, whose sum is σ = 136879112. Its totient is φ = 136879110.

The previous prime is 136879109. The next prime is 136879117. The reversal of 136879111 is 111978631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136879111 - 2¹ = 136879109 is a prime.

Together with 136879109, it forms a pair of twin primes.

It is equal to p_7745761 and since 136879111 and 7745761 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136879117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68439555 + 68439556.

It is an arithmetic number, because the mean of its divisors is an integer number (68439556).

Almost surely, 2^136879111 is an apocalyptic number.

136879111 is a deficient number, since it is larger than the sum of its proper divisors (1).

136879111 is an equidigital number, since it uses as much as digits as its factorization.

136879111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9072, while the sum is 37.

The square root of 136879111 is about 11699.5346488653. The cubic root of 136879111 is about 515.3619989202.

The spelling of 136879111 in words is "one hundred thirty-six million, eight hundred seventy-nine thousand, one hundred eleven".