40013133 has 8 divisors (see below), whose sum is σ = 54225696. Its totient is φ = 26238000.

The previous prime is 40013117. The next prime is 40013153. The reversal of 40013133 is 33131004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40013133 - 2⁴ = 40013117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40013153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109143 + ... + 109508.

It is an arithmetic number, because the mean of its divisors is an integer number (6778212).

Almost surely, 2^40013133 is an apocalyptic number.

It is an amenable number.

40013133 is a deficient number, since it is larger than the sum of its proper divisors (14212563).

40013133 is a wasteful number, since it uses less digits than its factorization.

40013133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218715.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 40013133 is about 6325.5934899423. The cubic root of 40013133 is about 342.0326137634.

Adding to 40013133 its reverse (33131004), we get a palindrome (73144137).

The spelling of 40013133 in words is "forty million, thirteen thousand, one hundred thirty-three".