10681257 has 4 divisors (see below), whose sum is σ = 14241680. Its totient is φ = 7120836.

The previous prime is 10681241. The next prime is 10681273. The reversal of 10681257 is 75218601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75218601 = 3 ⋅25072867.

It is an interprime number because it is at equal distance from previous prime (10681241) and next prime (10681273).

It is not a de Polignac number, because 10681257 - 2⁴ = 10681241 is a prime.

It is a super-2 number, since 2×10681257² = 228178502200098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10681217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1780207 + ... + 1780212.

It is an arithmetic number, because the mean of its divisors is an integer number (3560420).

Almost surely, 2^10681257 is an apocalyptic number.

It is an amenable number.

10681257 is a deficient number, since it is larger than the sum of its proper divisors (3560423).

10681257 is an equidigital number, since it uses as much as digits as its factorization.

10681257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560422.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 10681257 is about 3268.2192398920. The cubic root of 10681257 is about 220.2288046555.

Adding to 10681257 its reverse (75218601), we get a palindrome (85899858).

The spelling of 10681257 in words is "ten million, six hundred eighty-one thousand, two hundred fifty-seven".