106243765 has 4 divisors (see below), whose sum is σ = 127492524. Its totient is φ = 84995008.

The previous prime is 106243759. The next prime is 106243771. The reversal of 106243765 is 567342601.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (106243759) and next prime (106243771).

It can be written as a sum of positive squares in 2 ways, for example, as 16695396 + 89548369 = 4086^2 + 9463^2 .

It is a cyclic number.

It is not a de Polignac number, because 106243765 - 2³ = 106243757 is a prime.

It is a super-2 number, since 2×106243765² = 22575475202750450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106243765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10624372 + ... + 10624381.

It is an arithmetic number, because the mean of its divisors is an integer number (31873131).

Almost surely, 2^106243765 is an apocalyptic number.

It is an amenable number.

106243765 is a deficient number, since it is larger than the sum of its proper divisors (21248759).

106243765 is an equidigital number, since it uses as much as digits as its factorization.

106243765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21248758.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 106243765 is about 10307.4616176826. The cubic root of 106243765 is about 473.6248537569.

The spelling of 106243765 in words is "one hundred six million, two hundred forty-three thousand, seven hundred sixty-five".