42712913 has 2 divisors, whose sum is σ = 42712914. Its totient is φ = 42712912.

The previous prime is 42712867. The next prime is 42712927. The reversal of 42712913 is 31921724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29953729 + 12759184 = 5473^2 + 3572^2 .

It is a cyclic number.

It is not a de Polignac number, because 42712913 - 2¹² = 42708817 is a prime.

It is not a weakly prime, because it can be changed into another prime (42712933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21356456 + 21356457.

It is an arithmetic number, because the mean of its divisors is an integer number (21356457).

Almost surely, 2^42712913 is an apocalyptic number.

It is an amenable number.

42712913 is a deficient number, since it is larger than the sum of its proper divisors (1).

42712913 is an equidigital number, since it uses as much as digits as its factorization.

42712913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 42712913 is about 6535.5116861651. The cubic root of 42712913 is about 349.5583899748.

The spelling of 42712913 in words is "forty-two million, seven hundred twelve thousand, nine hundred thirteen".