40136005 has 16 divisors (see below), whose sum is σ = 59278464. Its totient is φ = 25404480.

The previous prime is 40135973. The next prime is 40136023. The reversal of 40136005 is 50063104.

It is not a de Polignac number, because 40136005 - 2⁵ = 40135973 is a prime.

It is a super-2 number, since 2×40136005² = 3221797794720050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43651 + ... + 44560.

It is an arithmetic number, because the mean of its divisors is an integer number (3704904).

Almost surely, 2^40136005 is an apocalyptic number.

It is an amenable number.

40136005 is a deficient number, since it is larger than the sum of its proper divisors (19142459).

40136005 is a wasteful number, since it uses less digits than its factorization.

40136005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88236.

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

The square root of 40136005 is about 6335.2983355166. The cubic root of 40136005 is about 342.3823596549.

Adding to 40136005 its reverse (50063104), we get a palindrome (90199109).

The spelling of 40136005 in words is "forty million, one hundred thirty-six thousand, five".