42451143 has 16 divisors (see below), whose sum is σ = 65126400. Its totient is φ = 24093216.

The previous prime is 42451139. The next prime is 42451151. The reversal of 42451143 is 34115424.

It is not a de Polignac number, because 42451143 - 2² = 42451139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42451153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3655 + ... + 9912.

It is an arithmetic number, because the mean of its divisors is an integer number (4070400).

Almost surely, 2^42451143 is an apocalyptic number.

42451143 is a deficient number, since it is larger than the sum of its proper divisors (22675257).

42451143 is a wasteful number, since it uses less digits than its factorization.

42451143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13726.

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

The square root of 42451143 is about 6515.4541668252. The cubic root of 42451143 is about 348.8428259733.

Adding to 42451143 its reverse (34115424), we get a palindrome (76566567).

The spelling of 42451143 in words is "forty-two million, four hundred fifty-one thousand, one hundred forty-three".