1481309 has 2 divisors, whose sum is σ = 1481310. Its totient is φ = 1481308.

The previous prime is 1481281. The next prime is 1481321. The reversal of 1481309 is 9031841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1162084 + 319225 = 1078^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481309 - 2¹⁶ = 1415773 is a 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 (1481339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740654 + 740655.

It is an arithmetic number, because the mean of its divisors is an integer number (740655).

2^1481309 is an apocalyptic number.

It is an amenable number.

1481309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481309 is an equidigital number, since it uses as much as digits as its factorization.

1481309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 1481309 is about 1217.0903828393. The cubic root of 1481309 is about 113.9939721856.

The spelling of 1481309 in words is "one million, four hundred eighty-one thousand, three hundred nine".