136222631 has 2 divisors, whose sum is σ = 136222632. Its totient is φ = 136222630.

The previous prime is 136222627. The next prime is 136222633.

136222631 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 136222631 - 2² = 136222627 is a prime.

It is a super-2 number, since 2×136222631² = 37113210393124322, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 136222633, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136222631.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136222633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68111315 + 68111316.

It is an arithmetic number, because the mean of its divisors is an integer number (68111316).

Almost surely, 2^136222631 is an apocalyptic number.

136222631 is a deficient number, since it is larger than the sum of its proper divisors (1).

136222631 is an equidigital number, since it uses as much as digits as its factorization.

136222631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 26.

The square root of 136222631 is about 11671.4451118960. The cubic root of 136222631 is about 514.5367764217.

The spelling of 136222631 in words is "one hundred thirty-six million, two hundred twenty-two thousand, six hundred thirty-one".