106431943 has 8 divisors (see below), whose sum is σ = 113078880. Its totient is φ = 99983520.

The previous prime is 106431931. The next prime is 106431947. The reversal of 106431943 is 349134601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-106431943 is a prime.

It is a super-2 number, since 2×106431943² = 22655516981510498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106431947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48523 + ... + 50668.

It is an arithmetic number, because the mean of its divisors is an integer number (14134860).

Almost surely, 2^106431943 is an apocalyptic number.

106431943 is a deficient number, since it is larger than the sum of its proper divisors (6646937).

106431943 is an equidigital number, since it uses as much as digits as its factorization.

106431943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99257.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 106431943 is about 10316.5858209002. The cubic root of 106431943 is about 473.9043155206.

The spelling of 106431943 in words is "one hundred six million, four hundred thirty-one thousand, nine hundred forty-three".