1283957 has 2 divisors, whose sum is σ = 1283958. Its totient is φ = 1283956.

The previous prime is 1283941. The next prime is 1283969. The reversal of 1283957 is 7593821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 119716 = 1079^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283957 - 2⁴ = 1283941 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641978 + 641979.

It is an arithmetic number, because the mean of its divisors is an integer number (641979).

2^1283957 is an apocalyptic number.

It is an amenable number.

1283957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283957 is an equidigital number, since it uses as much as digits as its factorization.

1283957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 1283957 is about 1133.1182639072. The cubic root of 1283957 is about 108.6884744686.

The spelling of 1283957 in words is "one million, two hundred eighty-three thousand, nine hundred fifty-seven".