1225949319743 has 2 divisors, whose sum is σ = 1225949319744. Its totient is φ = 1225949319742.

The previous prime is 1225949319737. The next prime is 1225949319787. The reversal of 1225949319743 is 3479139495221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225949319743 - 2²² = 1225945125439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225949318743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612974659871 + 612974659872.

It is an arithmetic number, because the mean of its divisors is an integer number (612974659872).

Almost surely, 2^{1225949319743} is an apocalyptic number.

1225949319743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225949319743 is an equidigital number, since it uses as much as digits as its factorization.

1225949319743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14696640, while the sum is 59.

The spelling of 1225949319743 in words is "one trillion, two hundred twenty-five billion, nine hundred forty-nine million, three hundred nineteen thousand, seven hundred forty-three".