40148123 has 2 divisors, whose sum is σ = 40148124. Its totient is φ = 40148122.

The previous prime is 40148117. The next prime is 40148149. The reversal of 40148123 is 32184104.

40148123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40148123 - 2²⁰ = 39099547 is a prime.

It is a super-2 number, since 2×40148123² = 3223743560846258, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (40148113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20074061 + 20074062.

It is an arithmetic number, because the mean of its divisors is an integer number (20074062).

Almost surely, 2^40148123 is an apocalyptic number.

40148123 is a deficient number, since it is larger than the sum of its proper divisors (1).

40148123 is an equidigital number, since it uses as much as digits as its factorization.

40148123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 40148123 is about 6336.2546508170. The cubic root of 40148123 is about 342.4168139389.

The spelling of 40148123 in words is "forty million, one hundred forty-eight thousand, one hundred twenty-three".