135305431199 has 4 divisors (see below), whose sum is σ = 139670122560. Its totient is φ = 130940739840.

The previous prime is 135305431193. The next prime is 135305431223. The reversal of 135305431199 is 991134503531.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135305431199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135305431193) 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, 2182345634 + ... + 2182345695.

It is an arithmetic number, because the mean of its divisors is an integer number (34917530640).

Almost surely, 2^135305431199 is an apocalyptic number.

135305431199 is a deficient number, since it is larger than the sum of its proper divisors (4364691361).

135305431199 is an equidigital number, since it uses as much as digits as its factorization.

135305431199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364691360.

The product of its (nonzero) digits is 218700, while the sum is 44.

The spelling of 135305431199 in words is "one hundred thirty-five billion, three hundred five million, four hundred thirty-one thousand, one hundred ninety-nine".