181242124 has 12 divisors (see below), whose sum is σ = 362484304. Its totient is φ = 77675184.

The previous prime is 181242107. The next prime is 181242157. The reversal of 181242124 is 421242181.

181242124 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236439 + ... + 3236494.

Almost surely, 2^181242124 is an apocalyptic number.

181242124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

181242124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

181242124 is a wasteful number, since it uses less digits than its factorization.

181242124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472944 (or 6472942 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 181242124 is about 13462.6195073619. The cubic root of 181242124 is about 565.9174006581.

The spelling of 181242124 in words is "one hundred eighty-one million, two hundred forty-two thousand, one hundred twenty-four".