136369493 has 16 divisors (see below), whose sum is σ = 149243136. Its totient is φ = 123854400.

The previous prime is 136369483. The next prime is 136369501. The reversal of 136369493 is 394963631.

It is a cyclic number.

It is not a de Polignac number, because 136369493 - 2²⁶ = 69260629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136369423) 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 15 ways as a sum of consecutive naturals, for example, 371396 + ... + 371762.

It is an arithmetic number, because the mean of its divisors is an integer number (9327696).

Almost surely, 2^136369493 is an apocalyptic number.

136369493 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

136369493 is a deficient number, since it is larger than the sum of its proper divisors (12873643).

136369493 is a wasteful number, since it uses less digits than its factorization.

136369493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764.

The product of its digits is 314928, while the sum is 44.

The square root of 136369493 is about 11677.7349259178. The cubic root of 136369493 is about 514.7216178582.

The spelling of 136369493 in words is "one hundred thirty-six million, three hundred sixty-nine thousand, four hundred ninety-three".