106631345 has 16 divisors (see below), whose sum is σ = 130999680. Its totient is φ = 83301504.

The previous prime is 106631341. The next prime is 106631377. The reversal of 106631345 is 543136601.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 106631345 - 2² = 106631341 is a prime.

It is a super-2 number, since 2×106631345² = 22740487473018050, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (106631341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35492 + ... + 38378.

It is an arithmetic number, because the mean of its divisors is an integer number (8187480).

Almost surely, 2^106631345 is an apocalyptic number.

It is an amenable number.

106631345 is a deficient number, since it is larger than the sum of its proper divisors (24368335).

106631345 is an equidigital number, since it uses as much as digits as its factorization.

106631345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 106631345 is about 10326.2454454656. The cubic root of 106631345 is about 474.2000867362.

Adding to 106631345 its reverse (543136601), we get a palindrome (649767946).

The spelling of 106631345 in words is "one hundred six million, six hundred thirty-one thousand, three hundred forty-five".