10509493 has 4 divisors (see below), whose sum is σ = 10687680. Its totient is φ = 10331308.

The previous prime is 10509487. The next prime is 10509503. The reversal of 10509493 is 39490501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39490501 = 241 ⋅163861.

It is a cyclic number.

It is not a de Polignac number, because 10509493 - 2⁵ = 10509461 is a prime.

It is a super-2 number, since 2×10509493² = 220898886234098, 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 (10509463) by changing a digit.

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, 89005 + ... + 89122.

It is an arithmetic number, because the mean of its divisors is an integer number (2671920).

Almost surely, 2^10509493 is an apocalyptic number.

It is an amenable number.

10509493 is a deficient number, since it is larger than the sum of its proper divisors (178187).

10509493 is an equidigital number, since it uses as much as digits as its factorization.

10509493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178186.

The product of its (nonzero) digits is 4860, while the sum is 31.

The square root of 10509493 is about 3241.8348199746. The cubic root of 10509493 is about 219.0419288234.

Adding to 10509493 its reverse (39490501), we get a palindrome (49999994).

The spelling of 10509493 in words is "ten million, five hundred nine thousand, four hundred ninety-three".