136267631 has 4 divisors (see below), whose sum is σ = 144283392. Its totient is φ = 128251872.

The previous prime is 136267627. The next prime is 136267643. The reversal of 136267631 is 136762631.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 136267631 - 2² = 136267627 is a prime.

It is a super-2 number, since 2×136267631² = 37137734516704322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 136267591 and 136267600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136267931) 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, 4007855 + ... + 4007888.

It is an arithmetic number, because the mean of its divisors is an integer number (36070848).

Almost surely, 2^136267631 is an apocalyptic number.

136267631 is a deficient number, since it is larger than the sum of its proper divisors (8015761).

136267631 is an equidigital number, since it uses as much as digits as its factorization.

136267631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015760.

The product of its digits is 27216, while the sum is 35.

The square root of 136267631 is about 11673.3727345613. The cubic root of 136267631 is about 514.5934278157.

The spelling of 136267631 in words is "one hundred thirty-six million, two hundred sixty-seven thousand, six hundred thirty-one".