1245975793 has 2 divisors, whose sum is σ = 1245975794. Its totient is φ = 1245975792.

The previous prime is 1245975779. The next prime is 1245975817. The reversal of 1245975793 is 3975795421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1161923569 + 84052224 = 34087^2 + 9168^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245975793 - 2¹³ = 1245967601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245975793.

It is not a weakly prime, because it can be changed into another prime (1245975733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622987896 + 622987897.

It is an arithmetic number, because the mean of its divisors is an integer number (622987897).

Almost surely, 2^1245975793 is an apocalyptic number.

It is an amenable number.

1245975793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245975793 is an equidigital number, since it uses as much as digits as its factorization.

1245975793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2381400, while the sum is 52.

The square root of 1245975793 is about 35298.3823000432. The cubic root of 1245975793 is about 1076.0601167911.

The spelling of 1245975793 in words is "one billion, two hundred forty-five million, nine hundred seventy-five thousand, seven hundred ninety-three".