40315133 has 4 divisors (see below), whose sum is σ = 41705340. Its totient is φ = 38924928.

The previous prime is 40315129. The next prime is 40315141. The reversal of 40315133 is 33151304.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 13823524 + 26491609 = 3718^2 + 5147^2 .

It is a cyclic number.

It is not a de Polignac number, because 40315133 - 2² = 40315129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40315153) 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, 695060 + ... + 695117.

It is an arithmetic number, because the mean of its divisors is an integer number (10426335).

Almost surely, 2^40315133 is an apocalyptic number.

It is an amenable number.

40315133 is a deficient number, since it is larger than the sum of its proper divisors (1390207).

40315133 is a wasteful number, since it uses less digits than its factorization.

40315133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1390206.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 40315133 is about 6349.4198947620. The cubic root of 40315133 is about 342.8909574701.

Adding to 40315133 its reverse (33151304), we get a palindrome (73466437).

The spelling of 40315133 in words is "forty million, three hundred fifteen thousand, one hundred thirty-three".