135512224 has 24 divisors (see below), whose sum is σ = 267351840. Its totient is φ = 67613376.

The previous prime is 135512213. The next prime is 135512231. The reversal of 135512224 is 422215531.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11887 + ... + 20305.

It is an arithmetic number, because the mean of its divisors is an integer number (11139660).

Almost surely, 2^135512224 is an apocalyptic number.

It is an amenable number.

135512224 is a deficient number, since it is larger than the sum of its proper divisors (131839616).

135512224 is an equidigital number, since it uses as much as digits as its factorization.

135512224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8932 (or 8924 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 135512224 is about 11640.9717807406. The cubic root of 135512224 is about 513.6407730883.

Adding to 135512224 its reverse (422215531), we get a palindrome (557727755).

The spelling of 135512224 in words is "one hundred thirty-five million, five hundred twelve thousand, two hundred twenty-four".