15036985 has 8 divisors (see below), whose sum is σ = 18532296. Its totient is φ = 11704320.

The previous prime is 15036979. The next prime is 15036991. The reversal of 15036985 is 58963051.

It is an interprime number because it is at equal distance from previous prime (15036979) and next prime (15036991).

It can be written as a sum of positive squares in 4 ways, for example, as 8549776 + 6487209 = 2924^2 + 2547^2 .

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

It is not a de Polignac number, because 15036985 - 2⁹ = 15036473 is a prime.

It is a super-2 number, since 2×15036985² = 452221835780450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

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, 40456 + ... + 40825.

It is an arithmetic number, because the mean of its divisors is an integer number (2316537).

Almost surely, 2^15036985 is an apocalyptic number.

It is an amenable number.

15036985 is a deficient number, since it is larger than the sum of its proper divisors (3495311).

15036985 is an equidigital number, since it uses as much as digits as its factorization.

15036985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81323.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 15036985 is about 3877.7551495679. The cubic root of 15036985 is about 246.8237362981.

The spelling of 15036985 in words is "fifteen million, thirty-six thousand, nine hundred eighty-five".