136424297 has 2 divisors, whose sum is σ = 136424298. Its totient is φ = 136424296.

The previous prime is 136424287. The next prime is 136424311. The reversal of 136424297 is 792424631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96746896 + 39677401 = 9836^2 + 6299^2 .

It is an emirp because it is prime and its reverse (792424631) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 136424297 - 2¹² = 136420201 is a prime.

It is a super-2 number, since 2×136424297² = 37223177623888418, 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 136424297.

It is not a weakly prime, because it can be changed into another prime (136424227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68212148 + 68212149.

It is an arithmetic number, because the mean of its divisors is an integer number (68212149).

Almost surely, 2^136424297 is an apocalyptic number.

It is an amenable number.

136424297 is a deficient number, since it is larger than the sum of its proper divisors (1).

136424297 is an equidigital number, since it uses as much as digits as its factorization.

136424297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 136424297 is about 11680.0812069095. The cubic root of 136424297 is about 514.7905605152.

The spelling of 136424297 in words is "one hundred thirty-six million, four hundred twenty-four thousand, two hundred ninety-seven".