15000068 has 6 divisors (see below), whose sum is σ = 26250126. Its totient is φ = 7500032.

The previous prime is 15000067. The next prime is 15000079. The reversal of 15000068 is 86000051.

It can be written as a sum of positive squares in only one way, i.e., 14684224 + 315844 = 3832^2 + 562^2 .

It is not an unprimeable number, because it can be changed into a prime (15000067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1875005 + ... + 1875012.

It is an arithmetic number, because the mean of its divisors is an integer number (4375021).

Almost surely, 2^15000068 is an apocalyptic number.

It is an amenable number.

15000068 is a deficient number, since it is larger than the sum of its proper divisors (11250058).

15000068 is a wasteful number, since it uses less digits than its factorization.

15000068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3750021 (or 3750019 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 15000068 is about 3872.9921249597. The cubic root of 15000068 is about 246.6215801045.

The spelling of 15000068 in words is "fifteen million, sixty-eight", and thus it is an aban number and an uban number.