42041513 has 2 divisors, whose sum is σ = 42041514. Its totient is φ = 42041512.

The previous prime is 42041507. The next prime is 42041533. The reversal of 42041513 is 31514024.

It is an a-pointer prime, because the next prime (42041533) can be obtained adding 42041513 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23697424 + 18344089 = 4868^2 + 4283^2 .

It is a cyclic number.

It is not a de Polignac number, because 42041513 - 2⁴ = 42041497 is a prime.

It is not a weakly prime, because it can be changed into another prime (42041533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21020756 + 21020757.

It is an arithmetic number, because the mean of its divisors is an integer number (21020757).

Almost surely, 2^42041513 is an apocalyptic number.

It is an amenable number.

42041513 is a deficient number, since it is larger than the sum of its proper divisors (1).

42041513 is an equidigital number, since it uses as much as digits as its factorization.

42041513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 42041513 is about 6483.9427048672. The cubic root of 42041513 is about 347.7171508203.

Adding to 42041513 its reverse (31514024), we get a palindrome (73555537).

The spelling of 42041513 in words is "forty-two million, forty-one thousand, five hundred thirteen".