1287064229 has 8 divisors (see below), whose sum is σ = 1407900288. Its totient is φ = 1166866560.

The previous prime is 1287064217. The next prime is 1287064249. The reversal of 1287064229 is 9224607821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1287064229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1287064249) 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, 155372 + ... + 163445.

It is an arithmetic number, because the mean of its divisors is an integer number (175987536).

Almost surely, 2^1287064229 is an apocalyptic number.

It is an amenable number.

1287064229 is a deficient number, since it is larger than the sum of its proper divisors (120836059).

1287064229 is a wasteful number, since it uses less digits than its factorization.

1287064229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 319195.

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 1287064229 is about 35875.6774012701. The cubic root of 1287064229 is about 1087.7608070297.

The spelling of 1287064229 in words is "one billion, two hundred eighty-seven million, sixty-four thousand, two hundred twenty-nine".