1225392743 has 2 divisors, whose sum is σ = 1225392744. Its totient is φ = 1225392742.

The previous prime is 1225392737. The next prime is 1225392757. The reversal of 1225392743 is 3472935221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1225392743 - 2²⁶ = 1158283879 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1225392697 and 1225392706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225392713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612696371 + 612696372.

It is an arithmetic number, because the mean of its divisors is an integer number (612696372).

Almost surely, 2^1225392743 is an apocalyptic number.

1225392743 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225392743 is an equidigital number, since it uses as much as digits as its factorization.

1225392743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 38.

The square root of 1225392743 is about 35005.6101646579. The cubic root of 1225392743 is about 1070.1018166716.

The spelling of 1225392743 in words is "one billion, two hundred twenty-five million, three hundred ninety-two thousand, seven hundred forty-three".