442143125 has 10 divisors (see below), whose sum is σ = 552502830. Its totient is φ = 353714000.

The previous prime is 442143113. The next prime is 442143133. The reversal of 442143125 is 521341244.

It can be written as a sum of positive squares in 5 ways, for example, as 162384049 + 279759076 = 12743^2 + 16726^2 .

It is not a de Polignac number, because 442143125 - 2⁶ = 442143061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 442143094 and 442143103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 353090 + ... + 354339.

It is an arithmetic number, because the mean of its divisors is an integer number (55250283).

Almost surely, 2^442143125 is an apocalyptic number.

It is an amenable number.

442143125 is a deficient number, since it is larger than the sum of its proper divisors (110359705).

442143125 is an frugal number, since it uses more digits than its factorization.

442143125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707449 (or 707434 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 442143125 is about 21027.1996471237. The cubic root of 442143125 is about 761.8233718010.

Adding to 442143125 its reverse (521341244), we get a palindrome (963484369).

The spelling of 442143125 in words is "four hundred forty-two million, one hundred forty-three thousand, one hundred twenty-five".