106428565 has 8 divisors (see below), whose sum is σ = 127769688. Its totient is φ = 85105920.

The previous prime is 106428559. The next prime is 106428577. The reversal of 106428565 is 565824601.

It can be written as a sum of positive squares in 4 ways, for example, as 21659716 + 84768849 = 4654^2 + 9207^2 .

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

It is not a de Polignac number, because 106428565 - 2¹⁵ = 106395797 is a prime.

It is a super-2 number, since 2×106428565² = 22654078895918450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19809 + ... + 24601.

It is an arithmetic number, because the mean of its divisors is an integer number (15971211).

Almost surely, 2^106428565 is an apocalyptic number.

It is an amenable number.

106428565 is a deficient number, since it is larger than the sum of its proper divisors (21341123).

106428565 is an equidigital number, since it uses as much as digits as its factorization.

106428565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9239.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 106428565 is about 10316.4221026478. The cubic root of 106428565 is about 473.8993017824.

The spelling of 106428565 in words is "one hundred six million, four hundred twenty-eight thousand, five hundred sixty-five".