1200412287 has 12 divisors (see below), whose sum is σ = 1789862464. Its totient is φ = 774459360.

The previous prime is 1200412277. The next prime is 1200412307. The reversal of 1200412287 is 7822140021.

It is a de Polignac number, because none of the positive numbers 2^k-1200412287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1200412287.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200412207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2150998 + ... + 2151555.

Almost surely, 2^1200412287 is an apocalyptic number.

1200412287 is a deficient number, since it is larger than the sum of its proper divisors (589450177).

1200412287 is a wasteful number, since it uses less digits than its factorization.

1200412287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4302590 (or 4302587 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 1200412287 is about 34646.9664905890. The cubic root of 1200412287 is about 1062.7802553348.

The spelling of 1200412287 in words is "one billion, two hundred million, four hundred twelve thousand, two hundred eighty-seven".