42981041 has 2 divisors, whose sum is σ = 42981042. Its totient is φ = 42981040.

The previous prime is 42981031. The next prime is 42981047. The reversal of 42981041 is 14018924.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41280625 + 1700416 = 6425^2 + 1304^2 .

It is a cyclic number.

It is not a de Polignac number, because 42981041 - 2¹⁴ = 42964657 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42980995 and 42981013.

It is not a weakly prime, because it can be changed into another prime (42981047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21490520 + 21490521.

It is an arithmetic number, because the mean of its divisors is an integer number (21490521).

Almost surely, 2^42981041 is an apocalyptic number.

It is an amenable number.

42981041 is a deficient number, since it is larger than the sum of its proper divisors (1).

42981041 is an equidigital number, since it uses as much as digits as its factorization.

42981041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 42981041 is about 6555.9927547245. The cubic root of 42981041 is about 350.2883093813.

Adding to 42981041 its reverse (14018924), we get a palindrome (56999965).

The spelling of 42981041 in words is "forty-two million, nine hundred eighty-one thousand, forty-one".