15142663 has 4 divisors (see below), whose sum is σ = 15631168. Its totient is φ = 14654160.

The previous prime is 15142661. The next prime is 15142679. The reversal of 15142663 is 36624151.

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

It is a cyclic number.

It is not a de Polignac number, because 15142663 - 2¹ = 15142661 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15142661) 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, 244206 + ... + 244267.

It is an arithmetic number, because the mean of its divisors is an integer number (3907792).

Almost surely, 2^15142663 is an apocalyptic number.

15142663 is a deficient number, since it is larger than the sum of its proper divisors (488505).

15142663 is an equidigital number, since it uses as much as digits as its factorization.

15142663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488504.

The product of its digits is 4320, while the sum is 28.

The square root of 15142663 is about 3891.3574752264. The cubic root of 15142663 is about 247.4006021978.

The spelling of 15142663 in words is "fifteen million, one hundred forty-two thousand, six hundred sixty-three".