1481999 has 2 divisors, whose sum is σ = 1482000. Its totient is φ = 1481998.

The previous prime is 1481993. The next prime is 1482007. The reversal of 1481999 is 9991841.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1481999 - 2⁸ = 1481743 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1481993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740999 + 741000.

It is an arithmetic number, because the mean of its divisors is an integer number (741000).

2^1481999 is an apocalyptic number.

1481999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481999 is an equidigital number, since it uses as much as digits as its factorization.

1481999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 41.

The square root of 1481999 is about 1217.3738127625. The cubic root of 1481999 is about 114.0116690630.

The spelling of 1481999 in words is "one million, four hundred eighty-one thousand, nine hundred ninety-nine".