136993917 has 8 divisors (see below), whose sum is σ = 185161024. Its totient is φ = 90078048.

The previous prime is 136993903. The next prime is 136993921. The reversal of 136993917 is 719399631.

136993917 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 136993917 - 2¹⁰ = 136992893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136993937) 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, 312553 + ... + 312990.

It is an arithmetic number, because the mean of its divisors is an integer number (23145128).

Almost surely, 2^136993917 is an apocalyptic number.

It is an amenable number.

136993917 is a deficient number, since it is larger than the sum of its proper divisors (48167107).

136993917 is an equidigital number, since it uses as much as digits as its factorization.

136993917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625619.

The product of its digits is 275562, while the sum is 48.

The square root of 136993917 is about 11704.4400549535. The cubic root of 136993917 is about 515.5060435814.

The spelling of 136993917 in words is "one hundred thirty-six million, nine hundred ninety-three thousand, nine hundred seventeen".