15072105 has 16 divisors (see below), whose sum is σ = 24185664. Its totient is φ = 8015040.

The previous prime is 15072103. The next prime is 15072131. The reversal of 15072105 is 50127051.

It is not a de Polignac number, because 15072105 - 2¹ = 15072103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15072103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4690 + ... + 7220.

It is an arithmetic number, because the mean of its divisors is an integer number (1511604).

Almost surely, 2^15072105 is an apocalyptic number.

15072105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15072105 is a deficient number, since it is larger than the sum of its proper divisors (9113559).

15072105 is a wasteful number, since it uses less digits than its factorization.

15072105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2936.

The product of its (nonzero) digits is 350, while the sum is 21.

The square root of 15072105 is about 3882.2809017380. The cubic root of 15072105 is about 247.0157453069.

Adding to 15072105 its reverse (50127051), we get a palindrome (65199156).

The spelling of 15072105 in words is "fifteen million, seventy-two thousand, one hundred five".