12290737 has 2 divisors, whose sum is σ = 12290738. Its totient is φ = 12290736.

The previous prime is 12290713. The next prime is 12290743. The reversal of 12290737 is 73709221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7096896 + 5193841 = 2664^2 + 2279^2 .

It is a cyclic number.

It is not a de Polignac number, because 12290737 - 2¹⁹ = 11766449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12290699 and 12290708.

It is not a weakly prime, because it can be changed into another prime (12290137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6145368 + 6145369.

It is an arithmetic number, because the mean of its divisors is an integer number (6145369).

Almost surely, 2^12290737 is an apocalyptic number.

It is an amenable number.

12290737 is a deficient number, since it is larger than the sum of its proper divisors (1).

12290737 is an equidigital number, since it uses as much as digits as its factorization.

12290737 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5292, while the sum is 31.

The square root of 12290737 is about 3505.8147412549. The cubic root of 12290737 is about 230.7770629507. Note that the first 3 decimals are identical.

Adding to 12290737 its reverse (73709221), we get a palindrome (85999958).

The spelling of 12290737 in words is "twelve million, two hundred ninety thousand, seven hundred thirty-seven".