136252997 has 2 divisors, whose sum is σ = 136252998. Its totient is φ = 136252996.

The previous prime is 136252993. The next prime is 136253053. The reversal of 136252997 is 799252631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99880036 + 36372961 = 9994^2 + 6031^2 .

It is a cyclic number.

It is not a de Polignac number, because 136252997 - 2² = 136252993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136252993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68126498 + 68126499.

It is an arithmetic number, because the mean of its divisors is an integer number (68126499).

Almost surely, 2^136252997 is an apocalyptic number.

It is an amenable number.

136252997 is a deficient number, since it is larger than the sum of its proper divisors (1).

136252997 is an equidigital number, since it uses as much as digits as its factorization.

136252997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 204120, while the sum is 44.

The square root of 136252997 is about 11672.7459065980. The cubic root of 136252997 is about 514.5750061510.

The spelling of 136252997 in words is "one hundred thirty-six million, two hundred fifty-two thousand, nine hundred ninety-seven".