1681010 has 16 divisors (see below), whose sum is σ = 3058776. Its totient is φ = 665088.

The previous prime is 1681007. The next prime is 1681027. The reversal of 1681010 is 101861.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1270129 + 410881 = 1127^2 + 641^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1681010.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 104 + ... + 1836.

2^1681010 is an apocalyptic number.

1681010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1681010 is a deficient number, since it is larger than the sum of its proper divisors (1377766).

1681010 is a wasteful number, since it uses less digits than its factorization.

1681010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1837.

The product of its (nonzero) digits is 48, while the sum is 17.

The square root of 1681010 is about 1296.5376970995. The cubic root of 1681010 is about 118.9022571446.

Adding to 1681010 its reverse (101861), we get a palindrome (1782871).

The spelling of 1681010 in words is "one million, six hundred eighty-one thousand, ten".