136456693 has 4 divisors (see below), whose sum is σ = 136677760. Its totient is φ = 136235628.

The previous prime is 136456681. The next prime is 136456711. The reversal of 136456693 is 396654631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136456693 is a prime.

It is a super-3 number, since 3×136456693³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136456633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109605 + ... + 110842.

It is an arithmetic number, because the mean of its divisors is an integer number (34169440).

Almost surely, 2^136456693 is an apocalyptic number.

It is an amenable number.

136456693 is a deficient number, since it is larger than the sum of its proper divisors (221067).

136456693 is an equidigital number, since it uses as much as digits as its factorization.

136456693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221066.

The product of its digits is 349920, while the sum is 43.

The square root of 136456693 is about 11681.4679300163. The cubic root of 136456693 is about 514.8313055424.

The spelling of 136456693 in words is "one hundred thirty-six million, four hundred fifty-six thousand, six hundred ninety-three".