1282245197 has 4 divisors (see below), whose sum is σ = 1294940796. Its totient is φ = 1269549600.

The previous prime is 1282245163. The next prime is 1282245203. The reversal of 1282245197 is 7915422821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7915422821 = 14221 ⋅556601.

It can be written as a sum of positive squares in 2 ways, for example, as 1225980196 + 56265001 = 35014^2 + 7501^2 .

It is a cyclic number.

It is not a de Polignac number, because 1282245197 - 2¹² = 1282241101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1282245137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6347648 + ... + 6347849.

It is an arithmetic number, because the mean of its divisors is an integer number (323735199).

Almost surely, 2^1282245197 is an apocalyptic number.

It is an amenable number.

1282245197 is a deficient number, since it is larger than the sum of its proper divisors (12695599).

1282245197 is a wasteful number, since it uses less digits than its factorization.

1282245197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695598.

The product of its digits is 80640, while the sum is 41.

The square root of 1282245197 is about 35808.4514744774. The cubic root of 1282245197 is about 1086.4015093923.

The spelling of 1282245197 in words is "one billion, two hundred eighty-two million, two hundred forty-five thousand, one hundred ninety-seven".