40133155 has 4 divisors (see below), whose sum is σ = 48159792. Its totient is φ = 32106520.

The previous prime is 40133153. The next prime is 40133167. The reversal of 40133155 is 55133104.

It is a happy number.

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

It is not a de Polignac number, because 40133155 - 2¹ = 40133153 is a prime.

It is a super-2 number, since 2×40133155² = 3221340260508050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40133153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4013311 + ... + 4013320.

It is an arithmetic number, because the mean of its divisors is an integer number (12039948).

Almost surely, 2^40133155 is an apocalyptic number.

40133155 is a deficient number, since it is larger than the sum of its proper divisors (8026637).

40133155 is an equidigital number, since it uses as much as digits as its factorization.

40133155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8026636.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 40133155 is about 6335.0734013111. The cubic root of 40133155 is about 342.3742554367.

Adding to 40133155 its reverse (55133104), we get a palindrome (95266259).

The spelling of 40133155 in words is "forty million, one hundred thirty-three thousand, one hundred fifty-five".