136814487 has 16 divisors (see below), whose sum is σ = 193416192. Its totient is φ = 85726080.

The previous prime is 136814479. The next prime is 136814543. The reversal of 136814487 is 784418631.

It is not a de Polignac number, because 136814487 - 2³ = 136814479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136814437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49188 + ... + 51894.

It is an arithmetic number, because the mean of its divisors is an integer number (12088512).

Almost surely, 2^136814487 is an apocalyptic number.

136814487 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

136814487 is a deficient number, since it is larger than the sum of its proper divisors (56601705).

136814487 is a wasteful number, since it uses less digits than its factorization.

136814487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3718.

The product of its digits is 129024, while the sum is 42.

The square root of 136814487 is about 11696.7725035584. The cubic root of 136814487 is about 515.2808811214.

The spelling of 136814487 in words is "one hundred thirty-six million, eight hundred fourteen thousand, four hundred eighty-seven".