136902893 has 2 divisors, whose sum is σ = 136902894. Its totient is φ = 136902892.

The previous prime is 136902889. The next prime is 136902943. The reversal of 136902893 is 398209631.

136902893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136352329 + 550564 = 11677^2 + 742^2 .

It is a cyclic number.

It is not a de Polignac number, because 136902893 - 2² = 136902889 is a prime.

It is a super-2 number, since 2×136902893² = 37484804223538898, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 136902893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136902193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68451446 + 68451447.

It is an arithmetic number, because the mean of its divisors is an integer number (68451447).

Almost surely, 2^136902893 is an apocalyptic number.

It is an amenable number.

136902893 is a deficient number, since it is larger than the sum of its proper divisors (1).

136902893 is an equidigital number, since it uses as much as digits as its factorization.

136902893 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 136902893 is about 11700.5509699330. The cubic root of 136902893 is about 515.3918443052.

The spelling of 136902893 in words is "one hundred thirty-six million, nine hundred two thousand, eight hundred ninety-three".