136340572515457 has 4 divisors (see below), whose sum is σ = 136341035532100. Its totient is φ = 136340109498816.

The previous prime is 136340572515431. The next prime is 136340572515529. The reversal of 136340572515457 is 754515275043631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80039575962256 + 56300996553201 = 8946484^2 + 7503399^2 .

It is a cyclic number.

It is not a de Polignac number, because 136340572515457 - 2¹⁵ = 136340572482689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136340572555457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231066348 + ... + 231655645.

It is an arithmetic number, because the mean of its divisors is an integer number (34085258883025).

Almost surely, 2^{136340572515457} is an apocalyptic number.

It is an amenable number.

136340572515457 is a deficient number, since it is larger than the sum of its proper divisors (463016643).

136340572515457 is an equidigital number, since it uses as much as digits as its factorization.

136340572515457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463016642.

The product of its (nonzero) digits is 52920000, while the sum is 58.

The spelling of 136340572515457 in words is "one hundred thirty-six trillion, three hundred forty billion, five hundred seventy-two million, five hundred fifteen thousand, four hundred fifty-seven".