15143442 has 8 divisors (see below), whose sum is σ = 30286896. Its totient is φ = 5047812.

The previous prime is 15143419. The next prime is 15143461. The reversal of 15143442 is 24434151.

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

15143442 is an admirable 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, 1261948 + ... + 1261959.

It is an arithmetic number, because the mean of its divisors is an integer number (3785862).

Almost surely, 2^15143442 is an apocalyptic number.

15143442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

15143442 is a wasteful number, since it uses less digits than its factorization.

15143442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2523912.

The product of its digits is 1920, while the sum is 24.

The square root of 15143442 is about 3891.4575675446. The cubic root of 15143442 is about 247.4048445552.

Adding to 15143442 its reverse (24434151), we get a palindrome (39577593).

The spelling of 15143442 in words is "fifteen million, one hundred forty-three thousand, four hundred forty-two".