40080155 has 4 divisors (see below), whose sum is σ = 48096192. Its totient is φ = 32064120.

The previous prime is 40080127. The next prime is 40080163. The reversal of 40080155 is 55108004.

40080155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 40080155 - 2⁶ = 40080091 is a prime.

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 40080155.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4008011 + ... + 4008020.

It is an arithmetic number, because the mean of its divisors is an integer number (12024048).

Almost surely, 2^40080155 is an apocalyptic number.

40080155 is a deficient number, since it is larger than the sum of its proper divisors (8016037).

40080155 is an equidigital number, since it uses as much as digits as its factorization.

40080155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8016036.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 40080155 is about 6330.8889581164. Note that the first 3 decimals coincide. The cubic root of 40080155 is about 342.2234754542.

Adding to 40080155 its reverse (55108004), we get a palindrome (95188159).

The spelling of 40080155 in words is "forty million, eighty thousand, one hundred fifty-five".