1226630539 has 2 divisors, whose sum is σ = 1226630540. Its totient is φ = 1226630538.

The previous prime is 1226630527. The next prime is 1226630611. The reversal of 1226630539 is 9350366221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226630539 - 2¹³ = 1226622347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1226630498 and 1226630507.

It is not a weakly prime, because it can be changed into another prime (1226630239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613315269 + 613315270.

It is an arithmetic number, because the mean of its divisors is an integer number (613315270).

Almost surely, 2^1226630539 is an apocalyptic number.

1226630539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226630539 is an equidigital number, since it uses as much as digits as its factorization.

1226630539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 37.

The square root of 1226630539 is about 35023.2856682522. The cubic root of 1226630539 is about 1070.4620065004.

The spelling of 1226630539 in words is "one billion, two hundred twenty-six million, six hundred thirty thousand, five hundred thirty-nine".