136343631 has 32 divisors (see below), whose sum is σ = 192614400. Its totient is φ = 85691520.

The previous prime is 136343629. The next prime is 136343657.

136343631 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 136343631 - 2¹ = 136343629 is a prime.

It is a super-2 number, since 2×136343631² = 37179171428528322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136343681) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 713746 + ... + 713936.

It is an arithmetic number, because the mean of its divisors is an integer number (6019200).

Almost surely, 2^136343631 is an apocalyptic number.

136343631 is a deficient number, since it is larger than the sum of its proper divisors (56270769).

136343631 is a wasteful number, since it uses less digits than its factorization.

136343631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399.

The product of its digits is 11664, while the sum is 30.

The square root of 136343631 is about 11676.6275525085. The cubic root of 136343631 is about 514.6890774129.

The spelling of 136343631 in words is "one hundred thirty-six million, three hundred forty-three thousand, six hundred thirty-one".