1282879361 has 4 divisors (see below), whose sum is σ = 1282955712. Its totient is φ = 1282803012.

The previous prime is 1282879337. The next prime is 1282879369. The reversal of 1282879361 is 1639782821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1282879361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1282879369) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 725 + ... + 50658.

It is an arithmetic number, because the mean of its divisors is an integer number (320738928).

Almost surely, 2^1282879361 is an apocalyptic number.

It is an amenable number.

1282879361 is a deficient number, since it is larger than the sum of its proper divisors (76351).

1282879361 is an equidigital number, since it uses as much as digits as its factorization.

1282879361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76350.

The product of its digits is 290304, while the sum is 47.

The square root of 1282879361 is about 35817.3053285699. The cubic root of 1282879361 is about 1086.5805815333.

The spelling of 1282879361 in words is "one billion, two hundred eighty-two million, eight hundred seventy-nine thousand, three hundred sixty-one".