106345691 has 4 divisors (see below), whose sum is σ = 106417584. Its totient is φ = 106273800.

The previous prime is 106345663. The next prime is 106345699. The reversal of 106345691 is 196543601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 196543601 = 229 ⋅858269.

It is a cyclic number.

It is not a de Polignac number, because 106345691 - 2¹⁸ = 106083547 is a prime.

It is a super-2 number, since 2×106345691² = 22618811988534962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106345699) 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, 33680 + ... + 36701.

It is an arithmetic number, because the mean of its divisors is an integer number (26604396).

Almost surely, 2^106345691 is an apocalyptic number.

106345691 is a deficient number, since it is larger than the sum of its proper divisors (71893).

106345691 is an equidigital number, since it uses as much as digits as its factorization.

106345691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71892.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 106345691 is about 10312.4047147113. The cubic root of 106345691 is about 473.7762642341.

The spelling of 106345691 in words is "one hundred six million, three hundred forty-five thousand, six hundred ninety-one".