15093994 has 8 divisors (see below), whose sum is σ = 23972868. Its totient is φ = 7103040.

The previous prime is 15093983. The next prime is 15093997. The reversal of 15093994 is 49939051.

15093994 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 14538969 + 555025 = 3813^2 + 745^2 .

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

It is not an unprimeable number, because it can be changed into a prime (15093997) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 221937 + ... + 222004.

Almost surely, 2^15093994 is an apocalyptic number.

15093994 is a deficient number, since it is larger than the sum of its proper divisors (8878874).

15093994 is a wasteful number, since it uses less digits than its factorization.

15093994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443960.

The product of its (nonzero) digits is 43740, while the sum is 40.

The square root of 15093994 is about 3885.0989691384. The cubic root of 15093994 is about 247.1352665968.

The spelling of 15093994 in words is "fifteen million, ninety-three thousand, nine hundred ninety-four".