15145145 has 8 divisors (see below), whose sum is σ = 18286656. Its totient is φ = 12041136.

The previous prime is 15145129. The next prime is 15145157. The reversal of 15145145 is 54154151.

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

It is not a de Polignac number, because 15145145 - 2⁴ = 15145129 is a prime.

It is a Duffinian number.

It is a Curzon 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, 8477 + ... + 10106.

It is an arithmetic number, because the mean of its divisors is an integer number (2285832).

Almost surely, 2^15145145 is an apocalyptic number.

It is an amenable number.

15145145 is a deficient number, since it is larger than the sum of its proper divisors (3141511).

15145145 is a wasteful number, since it uses less digits than its factorization.

15145145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18751.

The product of its digits is 2000, while the sum is 26.

The square root of 15145145 is about 3891.6763740065. The cubic root of 15145145 is about 247.4141184190.

Adding to 15145145 its reverse (54154151), we get a palindrome (69299296).

The spelling of 15145145 in words is "fifteen million, one hundred forty-five thousand, one hundred forty-five".