136412731 has 8 divisors (see below), whose sum is σ = 167892704. Its totient is φ = 107930880.

The previous prime is 136412719. The next prime is 136412791. The reversal of 136412731 is 137214631.

136412731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 136412731 - 2⁹ = 136412219 is a prime.

It is a super-2 number, since 2×136412731² = 37216866357756722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 136412731.

It is not an unprimeable number, because it can be changed into a prime (136412711) 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, 749430 + ... + 749611.

It is an arithmetic number, because the mean of its divisors is an integer number (20986588).

Almost surely, 2^136412731 is an apocalyptic number.

136412731 is a deficient number, since it is larger than the sum of its proper divisors (31479973).

136412731 is a wasteful number, since it uses less digits than its factorization.

136412731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1499061.

The product of its digits is 3024, while the sum is 28.

The square root of 136412731 is about 11679.5860799944. The cubic root of 136412731 is about 514.7760121881.

The spelling of 136412731 in words is "one hundred thirty-six million, four hundred twelve thousand, seven hundred thirty-one".