136980895 has 4 divisors (see below), whose sum is σ = 164377080. Its totient is φ = 109584712.

The previous prime is 136980887. The next prime is 136980901. The reversal of 136980895 is 598089631.

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

It is a cyclic number.

It is not a de Polignac number, because 136980895 - 2³ = 136980887 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13698085 + ... + 13698094.

It is an arithmetic number, because the mean of its divisors is an integer number (41094270).

Almost surely, 2^136980895 is an apocalyptic number.

136980895 is a deficient number, since it is larger than the sum of its proper divisors (27396185).

136980895 is an equidigital number, since it uses as much as digits as its factorization.

136980895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27396184.

The product of its (nonzero) digits is 466560, while the sum is 49.

The square root of 136980895 is about 11703.8837571124. The cubic root of 136980895 is about 515.4897092007.

The spelling of 136980895 in words is "one hundred thirty-six million, nine hundred eighty thousand, eight hundred ninety-five".