15000345 has 12 divisors (see below), whose sum is σ = 26000676. Its totient is φ = 8000160.

The previous prime is 15000343. The next prime is 15000353. The reversal of 15000345 is 54300051.

15000345 is digitally balanced in base 2 and base 4, because in such bases 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 6215049 + 8785296 = 2493^2 + 2964^2 .

It is not a de Polignac number, because 15000345 - 2¹ = 15000343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15000343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 166626 + ... + 166715.

It is an arithmetic number, because the mean of its divisors is an integer number (2166723).

Almost surely, 2^15000345 is an apocalyptic number.

15000345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15000345 is a deficient number, since it is larger than the sum of its proper divisors (11000331).

15000345 is a wasteful number, since it uses less digits than its factorization.

15000345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333352 (or 333349 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 15000345 is about 3873.0278852598. The cubic root of 15000345 is about 246.6230981811.

Adding to 15000345 its reverse (54300051), we get a palindrome (69300396).

The spelling of 15000345 in words is "fifteen million, three hundred forty-five", and thus it is an aban number.