40135123 has 8 divisors (see below), whose sum is σ = 45999360. Its totient is φ = 34303560.

The previous prime is 40135099. The next prime is 40135141. The reversal of 40135123 is 32153104.

40135123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40135123 - 2⁵ = 40135091 is a prime.

It is a super-2 number, since 2×40135123² = 3221656196450258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40135123.

It is not an unprimeable number, because it can be changed into a prime (40135153) 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 7 ways as a sum of consecutive naturals, for example, 5473 + ... + 10498.

It is an arithmetic number, because the mean of its divisors is an integer number (5749920).

Almost surely, 2^40135123 is an apocalyptic number.

40135123 is a deficient number, since it is larger than the sum of its proper divisors (5864237).

40135123 is a wasteful number, since it uses less digits than its factorization.

40135123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16337.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 40135123 is about 6335.2287251527. The cubic root of 40135123 is about 342.3798516536.

Adding to 40135123 its reverse (32153104), we get a palindrome (72288227).

The spelling of 40135123 in words is "forty million, one hundred thirty-five thousand, one hundred twenty-three".