181225323 has 16 divisors (see below), whose sum is σ = 269040000. Its totient is φ = 120565800.

The previous prime is 181225309. The next prime is 181225351. The reversal of 181225323 is 323522181.

181225323 is a `hidden beast` number, since 1 + 8 + 122 + 532 + 3 = 666.

It is not a de Polignac number, because 181225323 - 2⁸ = 181225067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (181225393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6748 + ... + 20198.

It is an arithmetic number, because the mean of its divisors is an integer number (16815000).

Almost surely, 2^181225323 is an apocalyptic number.

181225323 is a deficient number, since it is larger than the sum of its proper divisors (87814677).

181225323 is a wasteful number, since it uses less digits than its factorization.

181225323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13959 (or 13953 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 181225323 is about 13461.9955058676. The cubic root of 181225323 is about 565.8999134209.

The spelling of 181225323 in words is "one hundred eighty-one million, two hundred twenty-five thousand, three hundred twenty-three".