136515267457 has 8 divisors (see below), whose sum is σ = 137283734952. Its totient is φ = 135746956800.

The previous prime is 136515267443. The next prime is 136515267503. The reversal of 136515267457 is 754762515631.

It can be written as a sum of positive squares in 4 ways, for example, as 856381696 + 135658885761 = 29264^2 + 368319^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136515267457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136515267437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2004753 + ... + 2071729.

It is an arithmetic number, because the mean of its divisors is an integer number (17160466869).

Almost surely, 2^136515267457 is an apocalyptic number.

It is an amenable number.

136515267457 is a deficient number, since it is larger than the sum of its proper divisors (768467495).

136515267457 is a wasteful number, since it uses less digits than its factorization.

136515267457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78419.

The product of its digits is 5292000, while the sum is 52.

The spelling of 136515267457 in words is "one hundred thirty-six billion, five hundred fifteen million, two hundred sixty-seven thousand, four hundred fifty-seven".