1681253 has 8 divisors (see below), whose sum is σ = 2022720. Its totient is φ = 1365120.

The previous prime is 1681247. The next prime is 1681259. The reversal of 1681253 is 3521861.

It is an interprime number because it is at equal distance from previous prime (1681247) and next prime (1681259).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1681253 - 2¹⁴ = 1664869 is a prime.

It is a super-2 number, since 2×1681253² = 5653223300018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1681259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6188 + ... + 6453.

It is an arithmetic number, because the mean of its divisors is an integer number (252840).

2^1681253 is an apocalyptic number.

It is an amenable number.

1681253 is a deficient number, since it is larger than the sum of its proper divisors (341467).

1681253 is a wasteful number, since it uses less digits than its factorization.

1681253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12667.

The product of its digits is 1440, while the sum is 26.

The square root of 1681253 is about 1296.6314048333. The cubic root of 1681253 is about 118.9079862115.

The spelling of 1681253 in words is "one million, six hundred eighty-one thousand, two hundred fifty-three".