10509189 has 4 divisors (see below), whose sum is σ = 14012256. Its totient is φ = 7006124.

The previous prime is 10509181. The next prime is 10509197. The reversal of 10509189 is 98190501.

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 an interprime number because it is at equal distance from previous prime (10509181) and next prime (10509197).

It is a cyclic number.

It is not a de Polignac number, because 10509189 - 2³ = 10509181 is a prime.

It is a super-2 number, since 2×10509189² = 220886106875442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10509181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1751529 + ... + 1751534.

It is an arithmetic number, because the mean of its divisors is an integer number (3503064).

Almost surely, 2^10509189 is an apocalyptic number.

It is an amenable number.

10509189 is a deficient number, since it is larger than the sum of its proper divisors (3503067).

10509189 is an equidigital number, since it uses as much as digits as its factorization.

10509189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503066.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 10509189 is about 3241.7879326076. The cubic root of 10509189 is about 219.0398167841.

The spelling of 10509189 in words is "ten million, five hundred nine thousand, one hundred eighty-nine".