15142506 has 24 divisors (see below), whose sum is σ = 31967424. Its totient is φ = 4781160.

The previous prime is 15142499. The next prime is 15142513. The reversal of 15142506 is 60524151.

It is an interprime number because it is at equal distance from previous prime (15142499) and next prime (15142513).

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 11 ways as a sum of consecutive naturals, for example, 1330 + ... + 5661.

It is an arithmetic number, because the mean of its divisors is an integer number (1331976).

Almost surely, 2^15142506 is an apocalyptic number.

15142506 is an abundant number, since it is smaller than the sum of its proper divisors (16824918).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15142506 is a wasteful number, since it uses less digits than its factorization.

15142506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7034 (or 7015 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 15142506 is about 3891.3373022651. The cubic root of 15142506 is about 247.3997471736.

Adding to 15142506 its reverse (60524151), we get a palindrome (75666657).

The spelling of 15142506 in words is "fifteen million, one hundred forty-two thousand, five hundred six".