184121145 has 48 divisors (see below), whose sum is σ = 355577040. Its totient is φ = 87510528.

The previous prime is 184121131. The next prime is 184121149. The reversal of 184121145 is 541121481.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 9960336 + 174160809 = 3156^2 + 13197^2 .

It is not a de Polignac number, because 184121145 - 2¹¹ = 184119097 is a prime.

It is a super-2 number, since 2×184121145² = 67801192072222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (184121149) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11539 + ... + 22391.

It is an arithmetic number, because the mean of its divisors is an integer number (7407855).

Almost surely, 2^184121145 is an apocalyptic number.

184121145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

184121145 is a deficient number, since it is larger than the sum of its proper divisors (171455895).

184121145 is a wasteful number, since it uses less digits than its factorization.

184121145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10906 (or 10903 counting only the distinct ones).

The product of its digits is 1280, while the sum is 27.

The square root of 184121145 is about 13569.1246954253. The cubic root of 184121145 is about 568.8981947683.

The spelling of 184121145 in words is "one hundred eighty-four million, one hundred twenty-one thousand, one hundred forty-five".