10561439 has 8 divisors (see below), whose sum is σ = 12595200. Its totient is φ = 8658936.

The previous prime is 10561433. The next prime is 10561451. The reversal of 10561439 is 93416501.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10561439 is a prime.

It is a super-2 number, since 2×10561439² = 223087987501442, 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 (10561433) 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 7 ways as a sum of consecutive naturals, for example, 32639 + ... + 32960.

It is an arithmetic number, because the mean of its divisors is an integer number (1574400).

Almost surely, 2^10561439 is an apocalyptic number.

10561439 is a deficient number, since it is larger than the sum of its proper divisors (2033761).

10561439 is an equidigital number, since it uses as much as digits as its factorization.

10561439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65629.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 10561439 is about 3249.8367651314. The cubic root of 10561439 is about 219.4022270950.

The spelling of 10561439 in words is "ten million, five hundred sixty-one thousand, four hundred thirty-nine".