136512997 has 2 divisors, whose sum is σ = 136512998. Its totient is φ = 136512996.

The previous prime is 136512949. The next prime is 136513019. The reversal of 136512997 is 799215631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132388036 + 4124961 = 11506^2 + 2031^2 .

It is a cyclic number.

It is not a de Polignac number, because 136512997 - 2²³ = 128124389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136512097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68256498 + 68256499.

It is an arithmetic number, because the mean of its divisors is an integer number (68256499).

Almost surely, 2^136512997 is an apocalyptic number.

It is an amenable number.

136512997 is a deficient number, since it is larger than the sum of its proper divisors (1).

136512997 is an equidigital number, since it uses as much as digits as its factorization.

136512997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 43.

The square root of 136512997 is about 11683.8776525604. The cubic root of 136512997 is about 514.9021047469.

The spelling of 136512997 in words is "one hundred thirty-six million, five hundred twelve thousand, nine hundred ninety-seven".