40136161 has 8 divisors (see below), whose sum is σ = 43307264. Its totient is φ = 36977040.

The previous prime is 40136153. The next prime is 40136179. The reversal of 40136161 is 16163104.

It is a happy number.

40136161 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 40136161 - 2³ = 40136153 is a prime.

It is a super-2 number, since 2×40136161² = 3221822839635842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40136101) 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, 4720 + ... + 10126.

It is an arithmetic number, because the mean of its divisors is an integer number (5413408).

Almost surely, 2^40136161 is an apocalyptic number.

It is an amenable number.

40136161 is a deficient number, since it is larger than the sum of its proper divisors (3171103).

40136161 is a wasteful number, since it uses less digits than its factorization.

40136161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5991.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 40136161 is about 6335.3106474742. The cubic root of 40136161 is about 342.3828032431.

Adding to 40136161 its reverse (16163104), we get a palindrome (56299265).

The spelling of 40136161 in words is "forty million, one hundred thirty-six thousand, one hundred sixty-one".