1481993 has 2 divisors, whose sum is σ = 1481994. Its totient is φ = 1481992.

The previous prime is 1481989. The next prime is 1481999. The reversal of 1481993 is 3991841.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 822649 + 659344 = 907^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481993 - 2² = 1481989 is a prime.

It is not a weakly prime, because it can be changed into another prime (1481999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740996 + 740997.

It is an arithmetic number, because the mean of its divisors is an integer number (740997).

2^1481993 is an apocalyptic number.

It is an amenable number.

1481993 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481993 is an equidigital number, since it uses as much as digits as its factorization.

1481993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 35.

The square root of 1481993 is about 1217.3713484389. The cubic root of 1481993 is about 114.0115152008.

The spelling of 1481993 in words is "one million, four hundred eighty-one thousand, nine hundred ninety-three".