136051731 has 40 divisors (see below), whose sum is σ = 222678720. Its totient is φ = 82397952.

The previous prime is 136051709. The next prime is 136051733. The reversal of 136051731 is 137150631.

136051731 is a `hidden beast` number, since 13 + 605 + 17 + 31 = 666.

136051731 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 136051731 - 2¹³ = 136043539 is a prime.

It is a super-2 number, since 2×136051731² = 37020147016192722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 136051695 and 136051704.

It is not an unprimeable number, because it can be changed into a prime (136051733) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 38230 + ... + 41636.

It is an arithmetic number, because the mean of its divisors is an integer number (5566968).

Almost surely, 2^136051731 is an apocalyptic number.

136051731 is a deficient number, since it is larger than the sum of its proper divisors (86626989).

136051731 is a wasteful number, since it uses less digits than its factorization.

136051731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3465 (or 3456 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 27.

The square root of 136051731 is about 11664.1215271447. The cubic root of 136051731 is about 514.3215132818.

The spelling of 136051731 in words is "one hundred thirty-six million, fifty-one thousand, seven hundred thirty-one".