136493871 has 8 divisors (see below), whose sum is σ = 184037040. Its totient is φ = 89973312.

The previous prime is 136493843. The next prime is 136493873. The reversal of 136493871 is 178394631.

136493871 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136493871 - 2²² = 132299567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136493873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 255340 + ... + 255873.

It is an arithmetic number, because the mean of its divisors is an integer number (23004630).

Almost surely, 2^136493871 is an apocalyptic number.

136493871 is a deficient number, since it is larger than the sum of its proper divisors (47543169).

136493871 is an equidigital number, since it uses as much as digits as its factorization.

136493871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511305.

The product of its digits is 108864, while the sum is 42.

The square root of 136493871 is about 11683.0591456176. The cubic root of 136493871 is about 514.8780570302.

The spelling of 136493871 in words is "one hundred thirty-six million, four hundred ninety-three thousand, eight hundred seventy-one".