136090631 has 2 divisors, whose sum is σ = 136090632. Its totient is φ = 136090630.

The previous prime is 136090621. The next prime is 136090637.

136090631 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 136090631 - 2⁶ = 136090567 is a prime.

It is a super-2 number, since 2×136090631² = 37041319691956322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 136090594 and 136090603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136090637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68045315 + 68045316.

It is an arithmetic number, because the mean of its divisors is an integer number (68045316).

Almost surely, 2^136090631 is an apocalyptic number.

136090631 is a deficient number, since it is larger than the sum of its proper divisors (1).

136090631 is an equidigital number, since it uses as much as digits as its factorization.

136090631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 136090631 is about 11665.7889145998. The cubic root of 136090631 is about 514.3705269920.

The spelling of 136090631 in words is "one hundred thirty-six million, ninety thousand, six hundred thirty-one".