1287274363 has 8 divisors (see below), whose sum is σ = 1323291632. Its totient is φ = 1251321696.

The previous prime is 1287274337. The next prime is 1287274367. The reversal of 1287274363 is 3634727821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1287274363 - 2¹³ = 1287266171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1287274367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25756 + ... + 56902.

It is an arithmetic number, because the mean of its divisors is an integer number (165411454).

Almost surely, 2^1287274363 is an apocalyptic number.

1287274363 is a deficient number, since it is larger than the sum of its proper divisors (36017269).

1287274363 is a wasteful number, since it uses less digits than its factorization.

1287274363 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32301.

The product of its digits is 338688, while the sum is 43.

The square root of 1287274363 is about 35878.6059233076. The cubic root of 1287274363 is about 1087.8200019752.

The spelling of 1287274363 in words is "one billion, two hundred eighty-seven million, two hundred seventy-four thousand, three hundred sixty-three".