15042145 has 4 divisors (see below), whose sum is σ = 18050580. Its totient is φ = 12033712.

The previous prime is 15042133. The next prime is 15042151. The reversal of 15042145 is 54124051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4910656 + 10131489 = 2216^2 + 3183^2 .

It is a cyclic number.

It is not a de Polignac number, because 15042145 - 2⁵ = 15042113 is a prime.

It is a super-2 number, since 2×15042145² = 452532252402050, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1504210 + ... + 1504219.

It is an arithmetic number, because the mean of its divisors is an integer number (4512645).

Almost surely, 2^15042145 is an apocalyptic number.

It is an amenable number.

15042145 is a deficient number, since it is larger than the sum of its proper divisors (3008435).

15042145 is an equidigital number, since it uses as much as digits as its factorization.

15042145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008434.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 15042145 is about 3878.4204258951. The cubic root of 15042145 is about 246.8519659116.

Adding to 15042145 its reverse (54124051), we get a palindrome (69166196).

The spelling of 15042145 in words is "fifteen million, forty-two thousand, one hundred forty-five".