1282256427 has 16 divisors (see below), whose sum is σ = 1764766080. Its totient is φ = 827611200.

The previous prime is 1282256387. The next prime is 1282256429. The reversal of 1282256427 is 7246522821.

It is not a de Polignac number, because 1282256427 - 2¹⁸ = 1281994283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1282256429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23677 + ... + 55902.

It is an arithmetic number, because the mean of its divisors is an integer number (110297880).

Almost surely, 2^1282256427 is an apocalyptic number.

1282256427 is a deficient number, since it is larger than the sum of its proper divisors (482509653).

1282256427 is a wasteful number, since it uses less digits than its factorization.

1282256427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79754.

The product of its digits is 107520, while the sum is 39.

The square root of 1282256427 is about 35808.6082806914. The cubic root of 1282256427 is about 1086.4046809785.

The spelling of 1282256427 in words is "one billion, two hundred eighty-two million, two hundred fifty-six thousand, four hundred twenty-seven".