1282213947 has 32 divisors (see below), whose sum is σ = 2053376512. Its totient is φ = 696294144.

The previous prime is 1282213943. The next prime is 1282213949. The reversal of 1282213947 is 7493122821.

It is not a de Polignac number, because 1282213947 - 2² = 1282213943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1282213943) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14223 + ... + 52599.

It is an arithmetic number, because the mean of its divisors is an integer number (64168016).

Almost surely, 2^1282213947 is an apocalyptic number.

1282213947 is a deficient number, since it is larger than the sum of its proper divisors (771162565).

1282213947 is a wasteful number, since it uses less digits than its factorization.

1282213947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38467.

The product of its digits is 48384, while the sum is 39.

The square root of 1282213947 is about 35808.0151223158. The cubic root of 1282213947 is about 1086.3926836433.

The spelling of 1282213947 in words is "one billion, two hundred eighty-two million, two hundred thirteen thousand, nine hundred forty-seven".