1225591463 has 2 divisors, whose sum is σ = 1225591464. Its totient is φ = 1225591462.

The previous prime is 1225591453. The next prime is 1225591511. The reversal of 1225591463 is 3641955221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225591463 - 2⁶ = 1225591399 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225591453) 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, 612795731 + 612795732.

It is an arithmetic number, because the mean of its divisors is an integer number (612795732).

Almost surely, 2^1225591463 is an apocalyptic number.

1225591463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225591463 is an equidigital number, since it uses as much as digits as its factorization.

1225591463 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 64800, while the sum is 38.

The square root of 1225591463 is about 35008.4484517666. The cubic root of 1225591463 is about 1070.1596591172.

The spelling of 1225591463 in words is "one billion, two hundred twenty-five million, five hundred ninety-one thousand, four hundred sixty-three".