1283177897 has 2 divisors, whose sum is σ = 1283177898. Its totient is φ = 1283177896.

The previous prime is 1283177887. The next prime is 1283177899. The reversal of 1283177897 is 7987713821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1283144041 + 33856 = 35821^2 + 184^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283177897 - 2⁸ = 1283177641 is a prime.

It is a super-4 number, since 4×1283177897⁴ (a number of 38 digits) contains 4444 as substring.

Together with 1283177899, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1283177899) 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 as a sum of consecutive naturals, namely, 641588948 + 641588949.

It is an arithmetic number, because the mean of its divisors is an integer number (641588949).

Almost surely, 2^1283177897 is an apocalyptic number.

It is an amenable number.

1283177897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283177897 is an equidigital number, since it uses as much as digits as its factorization.

1283177897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 53.

The square root of 1283177897 is about 35821.4725688378. The cubic root of 1283177897 is about 1086.6648602456.

The spelling of 1283177897 in words is "one billion, two hundred eighty-three million, one hundred seventy-seven thousand, eight hundred ninety-seven".