181413152 has 18 divisors (see below), whose sum is σ = 357307209. Its totient is φ = 90668480.

The previous prime is 181413139. The next prime is 181413187. The reversal of 181413152 is 251314181.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

181413152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 95961616 + 85451536 = 9796^2 + 9244^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=9524.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 75002 + ... + 77382.

Almost surely, 2^181413152 is an apocalyptic number.

It is an amenable number.

181413152 is a deficient number, since it is larger than the sum of its proper divisors (175894057).

181413152 is an frugal number, since it uses more digits than its factorization.

181413152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772 (or 2383 counting only the distinct ones).

The product of its digits is 960, while the sum is 26.

The square root of 181413152 is about 13468.9699680414. The cubic root of 181413152 is about 566.0953528373.

The spelling of 181413152 in words is "one hundred eighty-one million, four hundred thirteen thousand, one hundred fifty-two".