15125145 has 32 divisors (see below), whose sum is σ = 28864512. Its totient is φ = 6612672.

The previous prime is 15125141. The next prime is 15125147. The reversal of 15125145 is 54152151.

It is not a de Polignac number, because 15125145 - 2² = 15125141 is a prime.

It is a super-2 number, since 2×15125145² = 457540022542050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15125141) 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 31 ways as a sum of consecutive naturals, for example, 717 + ... + 5546.

It is an arithmetic number, because the mean of its divisors is an integer number (902016).

Almost surely, 2^15125145 is an apocalyptic number.

15125145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

15125145 is a deficient number, since it is larger than the sum of its proper divisors (13739367).

15125145 is a wasteful number, since it uses less digits than its factorization.

15125145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6301.

The product of its digits is 1000, while the sum is 24.

The square root of 15125145 is about 3889.1059383874. The cubic root of 15125145 is about 247.3051624439.

Adding to 15125145 its reverse (54152151), we get a palindrome (69277296).

The spelling of 15125145 in words is "fifteen million, one hundred twenty-five thousand, one hundred forty-five".