42512841 has 18 divisors (see below), whose sum is σ = 71433882. Its totient is φ = 24292800.

The previous prime is 42512839. The next prime is 42512843. The reversal of 42512841 is 14821524.

It is an interprime number because it is at equal distance from previous prime (42512839) and next prime (42512843).

It can be written as a sum of positive squares in only one way, i.e., 22127616 + 20385225 = 4704^2 + 4515^2 .

It is not a de Polignac number, because 42512841 - 2¹ = 42512839 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42512843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47760 + ... + 48641.

It is an arithmetic number, because the mean of its divisors is an integer number (3968549).

Almost surely, 2^42512841 is an apocalyptic number.

It is an amenable number.

42512841 is a deficient number, since it is larger than the sum of its proper divisors (28921041).

42512841 is a wasteful number, since it uses less digits than its factorization.

42512841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96421 (or 96411 counting only the distinct ones).

The product of its digits is 2560, while the sum is 27.

The square root of 42512841 is about 6520.1871905644. The cubic root of 42512841 is about 349.0117455400.

The spelling of 42512841 in words is "forty-two million, five hundred twelve thousand, eight hundred forty-one".