181249053 has 8 divisors (see below), whose sum is σ = 255881088. Its totient is φ = 113724864.

The previous prime is 181249049. The next prime is 181249067. The reversal of 181249053 is 350942181.

181249053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 181249053 - 2² = 181249049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181249093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1776901 + ... + 1777002.

It is an arithmetic number, because the mean of its divisors is an integer number (31985136).

Almost surely, 2^181249053 is an apocalyptic number.

It is an amenable number.

181249053 is a deficient number, since it is larger than the sum of its proper divisors (74632035).

181249053 is a wasteful number, since it uses less digits than its factorization.

181249053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3553923.

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 181249053 is about 13462.8768470933. The cubic root of 181249053 is about 565.9246123585.

The spelling of 181249053 in words is "one hundred eighty-one million, two hundred forty-nine thousand, fifty-three".