106118731 has 4 divisors (see below), whose sum is σ = 106378600. Its totient is φ = 105858864.

The previous prime is 106118717. The next prime is 106118759. The reversal of 106118731 is 137811601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 137811601 = 379 ⋅363619.

It is a cyclic number.

It is not a de Polignac number, because 106118731 - 2⁵ = 106118699 is a prime.

It is a super-2 number, since 2×106118731² = 22522370138100722, 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 106118731.

It is not an unprimeable number, because it can be changed into a prime (106118431) 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, 129321 + ... + 130138.

It is an arithmetic number, because the mean of its divisors is an integer number (26594650).

Almost surely, 2^106118731 is an apocalyptic number.

106118731 is a deficient number, since it is larger than the sum of its proper divisors (259869).

106118731 is an equidigital number, since it uses as much as digits as its factorization.

106118731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259868.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 106118731 is about 10301.3946143229. The cubic root of 106118731 is about 473.4389841639.

The spelling of 106118731 in words is "one hundred six million, one hundred eighteen thousand, seven hundred thirty-one".