136363731 has 16 divisors (see below), whose sum is σ = 211200768. Its totient is φ = 76644000.

The previous prime is 136363727. The next prime is 136363769. The reversal of 136363731 is 137363631.

It is not a de Polignac number, because 136363731 - 2² = 136363727 is a prime.

It is a super-2 number, since 2×136363731² = 37190134264480722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 136363692 and 136363701.

It is not an unprimeable number, because it can be changed into a prime (136363631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51945 + ... + 54506.

It is an arithmetic number, because the mean of its divisors is an integer number (13200048).

Almost surely, 2^136363731 is an apocalyptic number.

136363731 is a deficient number, since it is larger than the sum of its proper divisors (74837037).

136363731 is a wasteful number, since it uses less digits than its factorization.

136363731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106522.

The product of its digits is 20412, while the sum is 33.

The square root of 136363731 is about 11677.4882145091. The cubic root of 136363731 is about 514.7143682706.

The spelling of 136363731 in words is "one hundred thirty-six million, three hundred sixty-three thousand, seven hundred thirty-one".