136175465521 has 8 divisors (see below), whose sum is σ = 137410291304. Its totient is φ = 134945291520.

The previous prime is 136175465501. The next prime is 136175465549. The reversal of 136175465521 is 125564571631.

It can be written as a sum of positive squares in 4 ways, for example, as 652087296 + 135523378225 = 25536^2 + 368135^2 .

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-136175465521 is a prime.

It is a super-2 number, since 2×136175465521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136175465501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1104120 + ... + 1221241.

It is an arithmetic number, because the mean of its divisors is an integer number (17176286413).

Almost surely, 2^136175465521 is an apocalyptic number.

It is an amenable number.

136175465521 is a deficient number, since it is larger than the sum of its proper divisors (1234825783).

136175465521 is a wasteful number, since it uses less digits than its factorization.

136175465521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325891.

The product of its digits is 756000, while the sum is 46.

The spelling of 136175465521 in words is "one hundred thirty-six billion, one hundred seventy-five million, four hundred sixty-five thousand, five hundred twenty-one".