1283797945 has 8 divisors (see below), whose sum is σ = 1578132360. Its totient is φ = 1001988480.

The previous prime is 1283797939. The next prime is 1283797951. The reversal of 1283797945 is 5497973821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1283797939) and next prime (1283797951).

It can be written as a sum of positive squares in 4 ways, for example, as 43983424 + 1239814521 = 6632^2 + 35211^2 .

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

It is not a de Polignac number, because 1283797945 - 2²⁷ = 1149580217 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3131010 + ... + 3131419.

It is an arithmetic number, because the mean of its divisors is an integer number (197266545).

Almost surely, 2^1283797945 is an apocalyptic number.

It is an amenable number.

1283797945 is a deficient number, since it is larger than the sum of its proper divisors (294334415).

1283797945 is an equidigital number, since it uses as much as digits as its factorization.

1283797945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6262475.

The product of its digits is 3810240, while the sum is 55.

The square root of 1283797945 is about 35830.1262208215. The cubic root of 1283797945 is about 1086.8398621885.

The spelling of 1283797945 in words is "one billion, two hundred eighty-three million, seven hundred ninety-seven thousand, nine hundred forty-five".