1481558399 has 2 divisors, whose sum is σ = 1481558400. Its totient is φ = 1481558398.

The previous prime is 1481558359. The next prime is 1481558447. The reversal of 1481558399 is 9938551841.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (9938551841) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1481558399 - 2¹² = 1481554303 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1481558399.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1481558339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740779199 + 740779200.

It is an arithmetic number, because the mean of its divisors is an integer number (740779200).

Almost surely, 2^1481558399 is an apocalyptic number.

1481558399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481558399 is an equidigital number, since it uses as much as digits as its factorization.

1481558399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 53.

The square root of 1481558399 is about 38491.0171208816. The cubic root of 1481558399 is about 1140.0036931757.

The spelling of 1481558399 in words is "one billion, four hundred eighty-one million, five hundred fifty-eight thousand, three hundred ninety-nine".