136961493 has 8 divisors (see below), whose sum is σ = 186862368. Its totient is φ = 89184144.

The previous prime is 136961491. The next prime is 136961509. The reversal of 136961493 is 394169631.

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

It is not a de Polignac number, because 136961493 - 2¹ = 136961491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136961491) 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, 530730 + ... + 530987.

It is an arithmetic number, because the mean of its divisors is an integer number (23357796).

Almost surely, 2^136961493 is an apocalyptic number.

It is an amenable number.

136961493 is a deficient number, since it is larger than the sum of its proper divisors (49900875).

136961493 is a wasteful number, since it uses less digits than its factorization.

136961493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061763.

The product of its digits is 104976, while the sum is 42.

The square root of 136961493 is about 11703.0548576002. The cubic root of 136961493 is about 515.4653700314.

It can be divided in two parts, 13 and 6961493, that multiplied together give a palindrome (90499409).

The spelling of 136961493 in words is "one hundred thirty-six million, nine hundred sixty-one thousand, four hundred ninety-three".