106376509 has 4 divisors (see below), whose sum is σ = 108971100. Its totient is φ = 103781920.

The previous prime is 106376507. The next prime is 106376537. The reversal of 106376509 is 905673601.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57684025 + 48692484 = 7595^2 + 6978^2 .

It is a cyclic number.

It is not a de Polignac number, because 106376509 - 2¹ = 106376507 is a prime.

It is a super-2 number, since 2×106376509² = 22631923334054162, 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 (106376507) 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, 1297234 + ... + 1297315.

It is an arithmetic number, because the mean of its divisors is an integer number (27242775).

Almost surely, 2^106376509 is an apocalyptic number.

It is an amenable number.

106376509 is a deficient number, since it is larger than the sum of its proper divisors (2594591).

106376509 is an equidigital number, since it uses as much as digits as its factorization.

106376509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594590.

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 106376509 is about 10313.8988263411. The cubic root of 106376509 is about 473.8220251439.

The spelling of 106376509 in words is "one hundred six million, three hundred seventy-six thousand, five hundred nine".