135600324251 has 4 divisors (see below), whose sum is σ = 154971799152. Its totient is φ = 116228849352.

The previous prime is 135600324109. The next prime is 135600324253. The reversal of 135600324251 is 152423006531.

It is a happy number.

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

It is not a de Polignac number, because 135600324251 - 2²² = 135596129947 is a prime.

It is a super-2 number, since 2×135600324251² (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 (135600324253) 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, 9685737440 + ... + 9685737453.

It is an arithmetic number, because the mean of its divisors is an integer number (38742949788).

Almost surely, 2^135600324251 is an apocalyptic number.

135600324251 is a deficient number, since it is larger than the sum of its proper divisors (19371474901).

135600324251 is an equidigital number, since it uses as much as digits as its factorization.

135600324251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19371474900.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 135600324251 in words is "one hundred thirty-five billion, six hundred million, three hundred twenty-four thousand, two hundred fifty-one".