37845013 has 2 divisors, whose sum is σ = 37845014. Its totient is φ = 37845012.

The previous prime is 37844999. The next prime is 37845023. The reversal of 37845013 is 31054873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35307364 + 2537649 = 5942^2 + 1593^2 .

It is a cyclic number.

It is not a de Polignac number, because 37845013 - 2⁹ = 37844501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (37845023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18922506 + 18922507.

It is an arithmetic number, because the mean of its divisors is an integer number (18922507).

Almost surely, 2^37845013 is an apocalyptic number.

It is an amenable number.

37845013 is a deficient number, since it is larger than the sum of its proper divisors (1).

37845013 is an equidigital number, since it uses as much as digits as its factorization.

37845013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 37845013 is about 6151.8300529192. The cubic root of 37845013 is about 335.7398455092.

Adding to 37845013 its reverse (31054873), we get a palindrome (68899886).

The spelling of 37845013 in words is "thirty-seven million, eight hundred forty-five thousand, thirteen".