136947793 has 8 divisors (see below), whose sum is σ = 138267360. Its totient is φ = 135632640.

The previous prime is 136947787. The next prime is 136947817. The reversal of 136947793 is 397749631.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 136947793 - 2⁵ = 136947761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136947703) 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, 111921 + ... + 113137.

It is an arithmetic number, because the mean of its divisors is an integer number (17283420).

Almost surely, 2^136947793 is an apocalyptic number.

It is an amenable number.

136947793 is a deficient number, since it is larger than the sum of its proper divisors (1319567).

136947793 is a wasteful number, since it uses less digits than its factorization.

136947793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2207.

The product of its digits is 857304, while the sum is 49.

The square root of 136947793 is about 11702.4695257027. The cubic root of 136947793 is about 515.4481824485.

The spelling of 136947793 in words is "one hundred thirty-six million, nine hundred forty-seven thousand, seven hundred ninety-three".