1225243337 has 2 divisors, whose sum is σ = 1225243338. Its totient is φ = 1225243336.

The previous prime is 1225243309. The next prime is 1225243361. The reversal of 1225243337 is 7333425221.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123858576 + 101384761 = 33524^2 + 10069^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225243337 - 2¹⁴ = 1225226953 is a prime.

It is a super-3 number, since 3×1225243337³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1225243307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612621668 + 612621669.

It is an arithmetic number, because the mean of its divisors is an integer number (612621669).

Almost surely, 2^1225243337 is an apocalyptic number.

It is an amenable number.

1225243337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225243337 is an equidigital number, since it uses as much as digits as its factorization.

1225243337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 32.

The square root of 1225243337 is about 35003.4760702419. The cubic root of 1225243337 is about 1070.0583241856.

Adding to 1225243337 its reverse (7333425221), we get a palindrome (8558668558).

The spelling of 1225243337 in words is "one billion, two hundred twenty-five million, two hundred forty-three thousand, three hundred thirty-seven".