136242631 has 16 divisors (see below), whose sum is σ = 160953408. Its totient is φ = 112896000.

The previous prime is 136242581. The next prime is 136242649.

136242631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136242631 - 2¹⁵ = 136209863 is a prime.

It is a super-2 number, since 2×136242631² = 37124109003604322, 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 136242631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136242661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30331 + ... + 34531.

It is an arithmetic number, because the mean of its divisors is an integer number (10059588).

Almost surely, 2^136242631 is an apocalyptic number.

136242631 is a deficient number, since it is larger than the sum of its proper divisors (24710777).

136242631 is a wasteful number, since it uses less digits than its factorization.

136242631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362.

The product of its digits is 5184, while the sum is 28.

The square root of 136242631 is about 11672.3018723815. The cubic root of 136242631 is about 514.5619563591.

The spelling of 136242631 in words is "one hundred thirty-six million, two hundred forty-two thousand, six hundred thirty-one".