136902793 has 4 divisors (see below), whose sum is σ = 138314260. Its totient is φ = 135491328.

The previous prime is 136902767. The next prime is 136902797. The reversal of 136902793 is 397209631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 113891584 + 23011209 = 10672^2 + 4797^2 .

It is a cyclic number.

It is not a de Polignac number, because 136902793 - 2⁵ = 136902761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136902797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 705588 + ... + 705781.

It is an arithmetic number, because the mean of its divisors is an integer number (34578565).

Almost surely, 2^136902793 is an apocalyptic number.

It is an amenable number.

136902793 is a deficient number, since it is larger than the sum of its proper divisors (1411467).

136902793 is an equidigital number, since it uses as much as digits as its factorization.

136902793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411466.

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 136902793 is about 11700.5466966292. The cubic root of 136902793 is about 515.3917188167.

The spelling of 136902793 in words is "one hundred thirty-six million, nine hundred two thousand, seven hundred ninety-three".