135440523252435 has 32 divisors (see below), whose sum is σ = 219676341181248. Its totient is φ = 71244470937600.

The previous prime is 135440523252409. The next prime is 135440523252451. The reversal of 135440523252435 is 534252325044531.

It is a happy number.

It is not a de Polignac number, because 135440523252435 - 2⁸ = 135440523252179 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84949759 + ... + 86529431.

It is an arithmetic number, because the mean of its divisors is an integer number (6864885661914).

Almost surely, 2^{135440523252435} is an apocalyptic number.

135440523252435 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

135440523252435 is a deficient number, since it is larger than the sum of its proper divisors (84235817928813).

135440523252435 is a wasteful number, since it uses less digits than its factorization.

135440523252435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658055.

The product of its (nonzero) digits is 8640000, while the sum is 48.

Adding to 135440523252435 its reverse (534252325044531), we get a palindrome (669692848296966).

The spelling of 135440523252435 in words is "one hundred thirty-five trillion, four hundred forty billion, five hundred twenty-three million, two hundred fifty-two thousand, four hundred thirty-five".