442102141 has 6 divisors (see below), whose sum is σ = 478726170. Its totient is φ = 408094128.

The previous prime is 442102123. The next prime is 442102231. The reversal of 442102141 is 141201244.

It can be written as a sum of positive squares in 3 ways, for example, as 3367225 + 438734916 = 1835^2 + 20946^2 .

It is not a de Polignac number, because 442102141 - 2⁹ = 442101629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442102121) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1307826 + ... + 1308163.

It is an arithmetic number, because the mean of its divisors is an integer number (79787695).

Almost surely, 2^442102141 is an apocalyptic number.

It is an amenable number.

442102141 is a deficient number, since it is larger than the sum of its proper divisors (36624029).

442102141 is a wasteful number, since it uses less digits than its factorization.

442102141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2616015 (or 2616002 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 442102141 is about 21026.2250772696. The cubic root of 442102141 is about 761.7998322636.

Adding to 442102141 its reverse (141201244), we get a palindrome (583303385).

The spelling of 442102141 in words is "four hundred forty-two million, one hundred two thousand, one hundred forty-one".