40106023 has 2 divisors, whose sum is σ = 40106024. Its totient is φ = 40106022.

The previous prime is 40106021. The next prime is 40106041. The reversal of 40106023 is 32060104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40106023 - 2¹ = 40106021 is a prime.

Together with 40106021, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 40105988 and 40106006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40106021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20053011 + 20053012.

It is an arithmetic number, because the mean of its divisors is an integer number (20053012).

Almost surely, 2^40106023 is an apocalyptic number.

40106023 is a deficient number, since it is larger than the sum of its proper divisors (1).

40106023 is an equidigital number, since it uses as much as digits as its factorization.

40106023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 40106023 is about 6332.9316276113. The cubic root of 40106023 is about 342.2970840604.

Adding to 40106023 its reverse (32060104), we get a palindrome (72166127).

The spelling of 40106023 in words is "forty million, one hundred six thousand, twenty-three".