124985189 has 8 divisors (see below), whose sum is σ = 144648960. Its totient is φ = 105773616.

The previous prime is 124985167. The next prime is 124985191. The reversal of 124985189 is 981589421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-124985189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124985129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112454 + ... + 113559.

It is an arithmetic number, because the mean of its divisors is an integer number (18081120).

Almost surely, 2^124985189 is an apocalyptic number.

It is an amenable number.

124985189 is a deficient number, since it is larger than the sum of its proper divisors (19663771).

124985189 is an equidigital number, since it uses as much as digits as its factorization.

124985189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226099.

The product of its digits is 207360, while the sum is 47.

The square root of 124985189 is about 11179.6774998208. The cubic root of 124985189 is about 499.9802512200.

The spelling of 124985189 in words is "one hundred twenty-four million, nine hundred eighty-five thousand, one hundred eighty-nine".