1481881 has 2 divisors, whose sum is σ = 1481882. Its totient is φ = 1481880.

The previous prime is 1481849. The next prime is 1481891. The reversal of 1481881 is 1881841.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1190281 + 291600 = 1091^2 + 540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1481881 - 2⁵ = 1481849 is a prime.

It is a super-2 number, since 2×1481881² = 4391942596322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1481801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 740940 + 740941.

It is an arithmetic number, because the mean of its divisors is an integer number (740941).

2^1481881 is an apocalyptic number.

It is an amenable number.

1481881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1481881 is an equidigital number, since it uses as much as digits as its factorization.

1481881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 31.

The square root of 1481881 is about 1217.3253468157. The cubic root of 1481881 is about 114.0086430299.

The spelling of 1481881 in words is "one million, four hundred eighty-one thousand, eight hundred eighty-one".