15385945 has 8 divisors (see below), whose sum is σ = 18567360. Its totient is φ = 12239280.

The previous prime is 15385939. The next prime is 15385957. The reversal of 15385945 is 54958351.

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

It is not a de Polignac number, because 15385945 - 2¹³ = 15377753 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15385898 and 15385907.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7701 + ... + 9490.

It is an arithmetic number, because the mean of its divisors is an integer number (2320920).

Almost surely, 2^15385945 is an apocalyptic number.

It is an amenable number.

15385945 is a deficient number, since it is larger than the sum of its proper divisors (3181415).

15385945 is a wasteful number, since it uses less digits than its factorization.

15385945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17375.

The product of its digits is 108000, while the sum is 40.

The square root of 15385945 is about 3922.4921924715. The cubic root of 15385945 is about 248.7184820718.

The spelling of 15385945 in words is "fifteen million, three hundred eighty-five thousand, nine hundred forty-five".