1481994287 has 2 divisors, whose sum is σ = 1481994288. Its totient is φ = 1481994286.

The previous prime is 1481994257. The next prime is 1481994341. The reversal of 1481994287 is 7824991841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1481994287 - 2¹⁰ = 1481993263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1481994247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740997143 + 740997144.

It is an arithmetic number, because the mean of its divisors is an integer number (740997144).

Almost surely, 2^1481994287 is an apocalyptic number.

1481994287 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481994287 is an equidigital number, since it uses as much as digits as its factorization.

1481994287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 53.

The square root of 1481994287 is about 38496.6789087059. The cubic root of 1481994287 is about 1140.1154820429.

The spelling of 1481994287 in words is "one billion, four hundred eighty-one million, nine hundred ninety-four thousand, two hundred eighty-seven".