11280637 has 2 divisors, whose sum is σ = 11280638. Its totient is φ = 11280636.

The previous prime is 11280631. The next prime is 11280653. The reversal of 11280637 is 73608211.

11280637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10169721 + 1110916 = 3189^2 + 1054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11280637 is a prime.

It is a super-2 number, since 2×11280637² = 254505542251538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11280631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5640318 + 5640319.

It is an arithmetic number, because the mean of its divisors is an integer number (5640319).

Almost surely, 2^11280637 is an apocalyptic number.

It is an amenable number.

11280637 is a deficient number, since it is larger than the sum of its proper divisors (1).

11280637 is an equidigital number, since it uses as much as digits as its factorization.

11280637 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 11280637 is about 3358.6659554055. The cubic root of 11280637 is about 224.2734556278.

Adding to 11280637 its reverse (73608211), we get a palindrome (84888848).

The spelling of 11280637 in words is "eleven million, two hundred eighty thousand, six hundred thirty-seven".