181124149 has 8 divisors (see below), whose sum is σ = 190206720. Its totient is φ = 172142256.

The previous prime is 181124117. The next prime is 181124191. The reversal of 181124149 is 941421181.

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

It is a cyclic number.

It is not a de Polignac number, because 181124149 - 2⁵ = 181124117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 181124149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181164149) 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, 21469 + ... + 28690.

It is an arithmetic number, because the mean of its divisors is an integer number (23775840).

Almost surely, 2^181124149 is an apocalyptic number.

It is an amenable number.

181124149 is a deficient number, since it is larger than the sum of its proper divisors (9082571).

181124149 is a wasteful number, since it uses less digits than its factorization.

181124149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50339.

The product of its digits is 2304, while the sum is 31.

The square root of 181124149 is about 13458.2372174070. The cubic root of 181124149 is about 565.7945841089.

The spelling of 181124149 in words is "one hundred eighty-one million, one hundred twenty-four thousand, one hundred forty-nine".