106507309 has 4 divisors (see below), whose sum is σ = 106547616. Its totient is φ = 106467004.

The previous prime is 106507307. The next prime is 106507337. The reversal of 106507309 is 903705601.

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 106507309 - 2¹ = 106507307 is a prime.

It is a super-2 number, since 2×106507309² = 22687613740842962, 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 (106507307) 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, 15889 + ... + 21574.

It is an arithmetic number, because the mean of its divisors is an integer number (26636904).

Almost surely, 2^106507309 is an apocalyptic number.

It is an amenable number.

106507309 is a deficient number, since it is larger than the sum of its proper divisors (40307).

106507309 is an equidigital number, since it uses as much as digits as its factorization.

106507309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40306.

The product of its (nonzero) digits is 5670, while the sum is 31.

The square root of 106507309 is about 10320.2378364067. The cubic root of 106507309 is about 474.0161486306.

The spelling of 106507309 in words is "one hundred six million, five hundred seven thousand, three hundred nine".