10509405 has 8 divisors (see below), whose sum is σ = 16815072. Its totient is φ = 5605008.

The previous prime is 10509371. The next prime is 10509461. The reversal of 10509405 is 50490501.

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

It is not a de Polignac number, because 10509405 - 2¹³ = 10501213 is a prime.

It is a super-2 number, since 2×10509405² = 220895186908050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 350299 + ... + 350328.

It is an arithmetic number, because the mean of its divisors is an integer number (2101884).

Almost surely, 2^10509405 is an apocalyptic number.

10509405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10509405 is a deficient number, since it is larger than the sum of its proper divisors (6305667).

10509405 is an equidigital number, since it uses as much as digits as its factorization.

10509405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700635.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 10509405 is about 3241.8212473855. The cubic root of 10509405 is about 219.0413174478.

Adding to 10509405 its reverse (50490501), we get a palindrome (60999906).

The spelling of 10509405 in words is "ten million, five hundred nine thousand, four hundred five".