106143731 has 2 divisors, whose sum is σ = 106143732. Its totient is φ = 106143730.

The previous prime is 106143727. The next prime is 106143749. The reversal of 106143731 is 137341601.

It is a weak prime.

It is an emirp because it is prime and its reverse (137341601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 106143731 - 2² = 106143727 is a prime.

It is a super-2 number, since 2×106143731² = 22532983261200722, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 106143731.

It is not a weakly prime, because it can be changed into another prime (106142731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53071865 + 53071866.

It is an arithmetic number, because the mean of its divisors is an integer number (53071866).

Almost surely, 2^106143731 is an apocalyptic number.

106143731 is a deficient number, since it is larger than the sum of its proper divisors (1).

106143731 is an equidigital number, since it uses as much as digits as its factorization.

106143731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 106143731 is about 10302.6079708004. The cubic root of 106143731 is about 473.4761596470.

The spelling of 106143731 in words is "one hundred six million, one hundred forty-three thousand, seven hundred thirty-one".