136560553 has 4 divisors (see below), whose sum is σ = 136584448. Its totient is φ = 136536660.

The previous prime is 136560551. The next prime is 136560631. The reversal of 136560553 is 355065631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 355065631 = 139 ⋅2554429.

It is a cyclic number.

It is not a de Polignac number, because 136560553 - 2¹ = 136560551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136560551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248 + ... + 16678.

It is an arithmetic number, because the mean of its divisors is an integer number (34146112).

Almost surely, 2^136560553 is an apocalyptic number.

It is an amenable number.

136560553 is a deficient number, since it is larger than the sum of its proper divisors (23895).

136560553 is an equidigital number, since it uses as much as digits as its factorization.

136560553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23894.

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 136560553 is about 11685.9125873849. The cubic root of 136560553 is about 514.9618886555.

The spelling of 136560553 in words is "one hundred thirty-six million, five hundred sixty thousand, five hundred fifty-three".