10661229 has 12 divisors (see below), whose sum is σ = 15433756. Its totient is φ = 7091712.

The previous prime is 10661219. The next prime is 10661237. The reversal of 10661229 is 92216601.

It can be written as a sum of positive squares in 2 ways, for example, as 8838729 + 1822500 = 2973^2 + 1350^2 .

It is not a de Polignac number, because 10661229 - 2¹² = 10657133 is a prime.

It is a super-2 number, since 2×10661229² = 227323607580882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10661219) 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 11 ways as a sum of consecutive naturals, for example, 4167 + ... + 6219.

Almost surely, 2^10661229 is an apocalyptic number.

It is an amenable number.

10661229 is a deficient number, since it is larger than the sum of its proper divisors (4772527).

10661229 is a wasteful number, since it uses less digits than its factorization.

10661229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2636 (or 2633 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 10661229 is about 3265.1537482943. The cubic root of 10661229 is about 220.0910711105.

The spelling of 10661229 in words is "ten million, six hundred sixty-one thousand, two hundred twenty-nine".