135440242325 has 12 divisors (see below), whose sum is σ = 173363511168. Its totient is φ = 104856961200.

The previous prime is 135440242283. The next prime is 135440242331. The reversal of 135440242325 is 523242044531.

It is a happy number.

It is not a de Polignac number, because 135440242325 - 2⁶ = 135440242261 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87380027 + ... + 87381576.

It is an arithmetic number, because the mean of its divisors is an integer number (14446959264).

Almost surely, 2^135440242325 is an apocalyptic number.

It is an amenable number.

135440242325 is a deficient number, since it is larger than the sum of its proper divisors (37923268843).

135440242325 is a wasteful number, since it uses less digits than its factorization.

135440242325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174761644 (or 174761639 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 135440242325 its reverse (523242044531), we get a palindrome (658682286856).

The spelling of 135440242325 in words is "one hundred thirty-five billion, four hundred forty million, two hundred forty-two thousand, three hundred twenty-five".