136383631 has 4 divisors (see below), whose sum is σ = 136869264. Its totient is φ = 135898000.

The previous prime is 136383593. The next prime is 136383641.

136383631 is nontrivially palindromic in base 10.

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 136383631 - 2¹³ = 136375439 is a prime.

It is a super-2 number, since 2×136383631² = 37200989609488322, which contains 22 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 (136383641) 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, 242395 + ... + 242956.

It is an arithmetic number, because the mean of its divisors is an integer number (34217316).

Almost surely, 2^136383631 is an apocalyptic number.

136383631 is a deficient number, since it is larger than the sum of its proper divisors (485633).

136383631 is an equidigital number, since it uses as much as digits as its factorization.

136383631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485632.

The product of its digits is 23328, while the sum is 34.

The square root of 136383631 is about 11678.3402502239. The cubic root of 136383631 is about 514.7394050299.

The spelling of 136383631 in words is "one hundred thirty-six million, three hundred eighty-three thousand, six hundred thirty-one".