136814479 has 2 divisors, whose sum is σ = 136814480. Its totient is φ = 136814478.

The previous prime is 136814473. The next prime is 136814543. The reversal of 136814479 is 974418631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136814479 - 2²¹ = 134717327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136814473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68407239 + 68407240.

It is an arithmetic number, because the mean of its divisors is an integer number (68407240).

Almost surely, 2^136814479 is an apocalyptic number.

136814479 is a deficient number, since it is larger than the sum of its proper divisors (1).

136814479 is an equidigital number, since it uses as much as digits as its factorization.

136814479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 43.

The square root of 136814479 is about 11696.7721615837. The cubic root of 136814479 is about 515.2808710780.

Adding to 136814479 its product of digits (145152), we get a palindrome (136959631).

The spelling of 136814479 in words is "one hundred thirty-six million, eight hundred fourteen thousand, four hundred seventy-nine".