40152123 has 12 divisors (see below), whose sum is σ = 63270168. Its totient is φ = 24334560.

The previous prime is 40152121. The next prime is 40152127. The reversal of 40152123 is 32125104.

40152123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40152123 - 2¹ = 40152121 is a prime.

It is a super-2 number, since 2×40152123² = 3224385962814258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40152096 and 40152105.

It is not an unprimeable number, because it can be changed into a prime (40152121) 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 in 11 ways as a sum of consecutive naturals, for example, 202690 + ... + 202887.

It is an arithmetic number, because the mean of its divisors is an integer number (5272514).

Almost surely, 2^40152123 is an apocalyptic number.

40152123 is a deficient number, since it is larger than the sum of its proper divisors (23118045).

40152123 is a wasteful number, since it uses less digits than its factorization.

40152123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405594 (or 405591 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 40152123 is about 6336.5702868350. The cubic root of 40152123 is about 342.4281853445.

Adding to 40152123 its reverse (32125104), we get a palindrome (72277227).

The spelling of 40152123 in words is "forty million, one hundred fifty-two thousand, one hundred twenty-three".