106723131 has 4 divisors (see below), whose sum is σ = 142297512. Its totient is φ = 71148752.

The previous prime is 106723121. The next prime is 106723139. The reversal of 106723131 is 131327601.

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

It is a cyclic number.

It is not a de Polignac number, because 106723131 - 2⁹ = 106722619 is a prime.

It is a super-2 number, since 2×106723131² = 22779653380886322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106723139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17787186 + ... + 17787191.

It is an arithmetic number, because the mean of its divisors is an integer number (35574378).

Almost surely, 2^106723131 is an apocalyptic number.

106723131 is a deficient number, since it is larger than the sum of its proper divisors (35574381).

106723131 is an equidigital number, since it uses as much as digits as its factorization.

106723131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35574380.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 106723131 is about 10330.6887960097. The cubic root of 106723131 is about 474.3361081743.

The spelling of 106723131 in words is "one hundred six million, seven hundred twenty-three thousand, one hundred thirty-one".