15745013 has 2 divisors, whose sum is σ = 15745014. Its totient is φ = 15745012.

The previous prime is 15745007. The next prime is 15745027. The reversal of 15745013 is 31054751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15507844 + 237169 = 3938^2 + 487^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15745013 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15745003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7872506 + 7872507.

It is an arithmetic number, because the mean of its divisors is an integer number (7872507).

Almost surely, 2^15745013 is an apocalyptic number.

It is an amenable number.

15745013 is a deficient number, since it is larger than the sum of its proper divisors (1).

15745013 is an equidigital number, since it uses as much as digits as its factorization.

15745013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 15745013 is about 3967.9986139110. The cubic root of 15745013 is about 250.6384375355.

Adding to 15745013 its reverse (31054751), we get a palindrome (46799764).

The spelling of 15745013 in words is "fifteen million, seven hundred forty-five thousand, thirteen".