15128994 has 8 divisors (see below), whose sum is σ = 30258000. Its totient is φ = 5042996.

The previous prime is 15128987. The next prime is 15128999. The reversal of 15128994 is 49982151.

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

15128994 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (15128999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1260744 + ... + 1260755.

It is an arithmetic number, because the mean of its divisors is an integer number (3782250).

Almost surely, 2^15128994 is an apocalyptic number.

15128994 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.

15128994 is a wasteful number, since it uses less digits than its factorization.

15128994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2521504.

The product of its digits is 25920, while the sum is 39.

The square root of 15128994 is about 3889.6007507198. The cubic root of 15128994 is about 247.3261384816.

The spelling of 15128994 in words is "fifteen million, one hundred twenty-eight thousand, nine hundred ninety-four".