1282256361 has 6 divisors (see below), whose sum is σ = 1852148090. Its totient is φ = 854837568.

The previous prime is 1282256333. The next prime is 1282256369. The reversal of 1282256361 is 1636522821.

1282256361 is a `hidden beast` number, since 12 + 8 + 2 + 2 + 5 + 636 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1258049961 + 24206400 = 35469^2 + 4920^2 .

It is not a de Polignac number, because 1282256361 - 2¹³ = 1282248169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1282256369) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71236456 + ... + 71236473.

Almost surely, 2^1282256361 is an apocalyptic number.

It is an amenable number.

1282256361 is a deficient number, since it is larger than the sum of its proper divisors (569891729).

1282256361 is a wasteful number, since it uses less digits than its factorization.

1282256361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142472935 (or 142472932 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 1282256361 is about 35808.6073591253. The cubic root of 1282256361 is about 1086.4046623387.

The spelling of 1282256361 in words is "one billion, two hundred eighty-two million, two hundred fifty-six thousand, three hundred sixty-one".