136426837 has 2 divisors, whose sum is σ = 136426838. Its totient is φ = 136426836.

The previous prime is 136426813. The next prime is 136426883. The reversal of 136426837 is 738624631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131928196 + 4498641 = 11486^2 + 2121^2 .

It is a cyclic number.

It is not a de Polignac number, because 136426837 - 2⁷ = 136426709 is a prime.

It is a super-2 number, since 2×136426837² = 37224563707649138, 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 136426837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136424837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68213418 + 68213419.

It is an arithmetic number, because the mean of its divisors is an integer number (68213419).

Almost surely, 2^136426837 is an apocalyptic number.

It is an amenable number.

136426837 is a deficient number, since it is larger than the sum of its proper divisors (1).

136426837 is an equidigital number, since it uses as much as digits as its factorization.

136426837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 40.

The square root of 136426837 is about 11680.1899385241. The cubic root of 136426837 is about 514.7937553515.

The spelling of 136426837 in words is "one hundred thirty-six million, four hundred twenty-six thousand, eight hundred thirty-seven".