15245138 has 8 divisors (see below), whose sum is σ = 22885632. Its totient is φ = 7616596.

The previous prime is 15245137. The next prime is 15245161. The reversal of 15245138 is 83154251.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 15245138.

It is not an unprimeable number, because it can be changed into a prime (15245137) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1631 + ... + 5757.

It is an arithmetic number, because the mean of its divisors is an integer number (2860704).

Almost surely, 2^15245138 is an apocalyptic number.

15245138 is a deficient number, since it is larger than the sum of its proper divisors (7640494).

15245138 is a wasteful number, since it uses less digits than its factorization.

15245138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5976.

The product of its digits is 4800, while the sum is 29.

The square root of 15245138 is about 3904.5022730177. The cubic root of 15245138 is about 247.9574263547.

Adding to 15245138 its reverse (83154251), we get a palindrome (98399389).

The spelling of 15245138 in words is "fifteen million, two hundred forty-five thousand, one hundred thirty-eight".