1471681 has 2 divisors, whose sum is σ = 1471682. Its totient is φ = 1471680.

The previous prime is 1471669. The next prime is 1471693. The reversal of 1471681 is 1861741.

It is a balanced prime because it is at equal distance from previous prime (1471669) and next prime (1471693).

It can be written as a sum of positive squares in only one way, i.e., 1461681 + 10000 = 1209^2 + 100^2 .

It is a cyclic number.

It is not a de Polignac number, because 1471681 - 2⁵ = 1471649 is a prime.

It is a super-2 number, since 2×1471681² = 4331689931522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1471621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 735840 + 735841.

It is an arithmetic number, because the mean of its divisors is an integer number (735841).

2^1471681 is an apocalyptic number.

It is an amenable number.

1471681 is a deficient number, since it is larger than the sum of its proper divisors (1).

1471681 is an equidigital number, since it uses as much as digits as its factorization.

1471681 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1344, while the sum is 28.

The square root of 1471681 is about 1213.1285999431. The cubic root of 1471681 is about 113.7464612674.

The spelling of 1471681 in words is "one million, four hundred seventy-one thousand, six hundred eighty-one".