1274782045 has 8 divisors (see below), whose sum is σ = 1567049400. Its totient is φ = 994951680.

The previous prime is 1274782013. The next prime is 1274782049. The reversal of 1274782045 is 5402874721.

It can be written as a sum of positive squares in 4 ways, for example, as 51811204 + 1222970841 = 7198^2 + 34971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1274782045 - 2⁵ = 1274782013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1274781989 and 1274782007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274782049) 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 in 7 ways as a sum of consecutive naturals, for example, 3109020 + ... + 3109429.

It is an arithmetic number, because the mean of its divisors is an integer number (195881175).

Almost surely, 2^1274782045 is an apocalyptic number.

It is an amenable number.

1274782045 is a deficient number, since it is larger than the sum of its proper divisors (292267355).

1274782045 is an equidigital number, since it uses as much as digits as its factorization.

1274782045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6218495.

The product of its (nonzero) digits is 125440, while the sum is 40.

The square root of 1274782045 is about 35704.0900318157. The cubic root of 1274782045 is about 1084.2896509161.

The spelling of 1274782045 in words is "one billion, two hundred seventy-four million, seven hundred eighty-two thousand, forty-five".