135219799 has 48 divisors (see below), whose sum is σ = 171601920. Its totient is φ = 105652800.

The previous prime is 135219781. The next prime is 135219809. The reversal of 135219799 is 997912531.

It is not a de Polignac number, because 135219799 - 2⁵ = 135219767 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 (135219769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2291832 + ... + 2291890.

It is an arithmetic number, because the mean of its divisors is an integer number (3575040).

Almost surely, 2^135219799 is an apocalyptic number.

135219799 is a deficient number, since it is larger than the sum of its proper divisors (36382121).

135219799 is a wasteful number, since it uses less digits than its factorization.

135219799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172 (or 161 counting only the distinct ones).

The product of its digits is 153090, while the sum is 46.

The square root of 135219799 is about 11628.4048347140. The cubic root of 135219799 is about 513.2710411941.

The spelling of 135219799 in words is "one hundred thirty-five million, two hundred nineteen thousand, seven hundred ninety-nine".