10646261 has 4 divisors (see below), whose sum is σ = 10666272. Its totient is φ = 10626252.

The previous prime is 10646257. The next prime is 10646281. The reversal of 10646261 is 16264601.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 10646261 - 2² = 10646257 is a prime.

It is a super-2 number, since 2×10646261² = 226685746560242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10646261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10646201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9185 + ... + 10278.

It is an arithmetic number, because the mean of its divisors is an integer number (2666568).

Almost surely, 2^10646261 is an apocalyptic number.

It is an amenable number.

10646261 is a deficient number, since it is larger than the sum of its proper divisors (20011).

10646261 is an equidigital number, since it uses as much as digits as its factorization.

10646261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20010.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 10646261 is about 3262.8608612688. The cubic root of 10646261 is about 219.9880227639.

The spelling of 10646261 in words is "ten million, six hundred forty-six thousand, two hundred sixty-one".