15140042 has 8 divisors (see below), whose sum is σ = 23238336. Its totient is φ = 7393932.

The previous prime is 15140023. The next prime is 15140077. The reversal of 15140042 is 24004151.

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

It is a self number, because there is not a number n which added to its sum of digits gives 15140042.

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, 87938 + ... + 88109.

It is an arithmetic number, because the mean of its divisors is an integer number (2904792).

Almost surely, 2^15140042 is an apocalyptic number.

15140042 is a deficient number, since it is larger than the sum of its proper divisors (8098294).

15140042 is a wasteful number, since it uses less digits than its factorization.

15140042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176092.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 15140042 is about 3891.0206887140. The cubic root of 15140042 is about 247.3863274212.

Adding to 15140042 its reverse (24004151), we get a palindrome (39144193).

The spelling of 15140042 in words is "fifteen million, one hundred forty thousand, forty-two".