1225963 has 2 divisors, whose sum is σ = 1225964. Its totient is φ = 1225962.

The previous prime is 1225949. The next prime is 1225981. The reversal of 1225963 is 3695221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225963 - 2¹³ = 1217771 is a prime.

It is not a weakly prime, because it can be changed into another prime (1225933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612981 + 612982.

It is an arithmetic number, because the mean of its divisors is an integer number (612982).

2^1225963 is an apocalyptic number.

1225963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225963 is an equidigital number, since it uses as much as digits as its factorization.

1225963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 1225963 is about 1107.2321346493. The cubic root of 1225963 is about 107.0267787519.

The spelling of 1225963 in words is "one million, two hundred twenty-five thousand, nine hundred sixty-three".