135512199 has 24 divisors (see below), whose sum is σ = 207894960. Its totient is φ = 84817152.

The previous prime is 135512177. The next prime is 135512213. The reversal of 135512199 is 991215531.

135512199 is a `hidden beast` number, since 13 + 551 + 2 + 1 + 99 = 666.

It is not a de Polignac number, because 135512199 - 2⁷ = 135512071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135512119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15817 + ... + 22829.

It is an arithmetic number, because the mean of its divisors is an integer number (8662290).

Almost surely, 2^135512199 is an apocalyptic number.

135512199 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

135512199 is a deficient number, since it is larger than the sum of its proper divisors (72382761).

135512199 is a wasteful number, since it uses less digits than its factorization.

135512199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7151 (or 7148 counting only the distinct ones).

The product of its digits is 12150, while the sum is 36.

The square root of 135512199 is about 11640.9707069471. The cubic root of 135512199 is about 513.6407415020.

The spelling of 135512199 in words is "one hundred thirty-five million, five hundred twelve thousand, one hundred ninety-nine".