10540909 has 4 divisors (see below), whose sum is σ = 10698304. Its totient is φ = 10383516.

The previous prime is 10540903. The next prime is 10540913. The reversal of 10540909 is 90904501.

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 10540909 - 2⁷ = 10540781 is a prime.

It is a super-2 number, since 2×10540909² = 222221525092562, 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 (10540903) 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, 78597 + ... + 78730.

It is an arithmetic number, because the mean of its divisors is an integer number (2674576).

Almost surely, 2^10540909 is an apocalyptic number.

It is an amenable number.

10540909 is a deficient number, since it is larger than the sum of its proper divisors (157395).

10540909 is an equidigital number, since it uses as much as digits as its factorization.

10540909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157394.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 10540909 is about 3246.6766084721. The cubic root of 10540909 is about 219.2599721908.

It can be divided in two parts, 10540 and 909, that added together give a square (11449 = 107²).

The spelling of 10540909 in words is "ten million, five hundred forty thousand, nine hundred nine".