10691245 has 4 divisors (see below), whose sum is σ = 12829500. Its totient is φ = 8552992.

The previous prime is 10691237. The next prime is 10691267. The reversal of 10691245 is 54219601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54219601 = 89 ⋅609209.

It can be written as a sum of positive squares in 2 ways, for example, as 3433609 + 7257636 = 1853^2 + 2694^2 .

It is a cyclic number.

It is not a de Polignac number, because 10691245 - 2³ = 10691237 is a prime.

It is a super-2 number, since 2×10691245² = 228605439300050, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1069120 + ... + 1069129.

It is an arithmetic number, because the mean of its divisors is an integer number (3207375).

Almost surely, 2^10691245 is an apocalyptic number.

It is an amenable number.

10691245 is a deficient number, since it is larger than the sum of its proper divisors (2138255).

10691245 is an equidigital number, since it uses as much as digits as its factorization.

10691245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138254.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 10691245 is about 3269.7469321035. The cubic root of 10691245 is about 220.2974282901.

The spelling of 10691245 in words is "ten million, six hundred ninety-one thousand, two hundred forty-five".