1283420137 has 2 divisors, whose sum is σ = 1283420138. Its totient is φ = 1283420136.

The previous prime is 1283420111. The next prime is 1283420267. The reversal of 1283420137 is 7310243821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 935075241 + 348344896 = 30579^2 + 18664^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283420137 - 2⁷ = 1283420009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1283420099 and 1283420108.

It is not a weakly prime, because it can be changed into another prime (1283420737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641710068 + 641710069.

It is an arithmetic number, because the mean of its divisors is an integer number (641710069).

Almost surely, 2^1283420137 is an apocalyptic number.

It is an amenable number.

1283420137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283420137 is an equidigital number, since it uses as much as digits as its factorization.

1283420137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 1283420137 is about 35824.8536214735. The cubic root of 1283420137 is about 1086.7332366137.

Adding to 1283420137 its reverse (7310243821), we get a palindrome (8593663958).

The spelling of 1283420137 in words is "one billion, two hundred eighty-three million, four hundred twenty thousand, one hundred thirty-seven".