15730142 has 8 divisors (see below), whose sum is σ = 24170832. Its totient is φ = 7673200.

The previous prime is 15730139. The next prime is 15730147. The reversal of 15730142 is 24103751.

15730142 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15730147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95834 + ... + 95997.

It is an arithmetic number, because the mean of its divisors is an integer number (3021354).

Almost surely, 2^15730142 is an apocalyptic number.

15730142 is a deficient number, since it is larger than the sum of its proper divisors (8440690).

15730142 is a wasteful number, since it uses less digits than its factorization.

15730142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191874.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 15730142 is about 3966.1243046581. The cubic root of 15730142 is about 250.5595042193.

Adding to 15730142 its reverse (24103751), we get a palindrome (39833893).

The spelling of 15730142 in words is "fifteen million, seven hundred thirty thousand, one hundred forty-two".