135173224 has 16 divisors (see below), whose sum is σ = 256922820. Its totient is φ = 66660480.

The previous prime is 135173197. The next prime is 135173251. The reversal of 135173224 is 422371531.

It is an interprime number because it is at equal distance from previous prime (135173197) and next prime (135173251).

It can be written as a sum of positive squares in 2 ways, for example, as 114105124 + 21068100 = 10682^2 + 4590^2 .

It is a junction number, because it is equal to n+sod(n) for n = 135173192 and 135173201.

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, 115147 + ... + 116314.

Almost surely, 2^135173224 is an apocalyptic number.

It is an amenable number.

135173224 is a deficient number, since it is larger than the sum of its proper divisors (121749596).

135173224 is a wasteful number, since it uses less digits than its factorization.

135173224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231540 (or 231536 counting only the distinct ones).

The product of its digits is 5040, while the sum is 28.

The square root of 135173224 is about 11626.4020229820. The cubic root of 135173224 is about 513.2121042038.

The spelling of 135173224 in words is "one hundred thirty-five million, one hundred seventy-three thousand, two hundred twenty-four".