136455253537 has 2 divisors, whose sum is σ = 136455253538. Its totient is φ = 136455253536.

The previous prime is 136455253511. The next prime is 136455253547. The reversal of 136455253537 is 735352554631.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131148276736 + 5306976801 = 362144^2 + 72849^2 .

It is a cyclic number.

It is not a de Polignac number, because 136455253537 - 2³¹ = 134307769889 is a prime.

It is not a weakly prime, because it can be changed into another prime (136455253547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68227626768 + 68227626769.

It is an arithmetic number, because the mean of its divisors is an integer number (68227626769).

Almost surely, 2^136455253537 is an apocalyptic number.

It is an amenable number.

136455253537 is a deficient number, since it is larger than the sum of its proper divisors (1).

136455253537 is an equidigital number, since it uses as much as digits as its factorization.

136455253537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5670000, while the sum is 49.

The spelling of 136455253537 in words is "one hundred thirty-six billion, four hundred fifty-five million, two hundred fifty-three thousand, five hundred thirty-seven".