15471142 has 8 divisors (see below), whose sum is σ = 23746536. Its totient is φ = 7555632.

The previous prime is 15471121. The next prime is 15471161. The reversal of 15471142 is 24117451.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89863 + ... + 90034.

It is an arithmetic number, because the mean of its divisors is an integer number (2968317).

Almost surely, 2^15471142 is an apocalyptic number.

15471142 is a deficient number, since it is larger than the sum of its proper divisors (8275394).

15471142 is a wasteful number, since it uses less digits than its factorization.

15471142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179942.

The product of its digits is 1120, while the sum is 25.

The square root of 15471142 is about 3933.3372598850. The cubic root of 15471142 is about 249.1767157885.

Adding to 15471142 its reverse (24117451), we get a palindrome (39588593).

The spelling of 15471142 in words is "fifteen million, four hundred seventy-one thousand, one hundred forty-two".