40402155133 has 2 divisors, whose sum is σ = 40402155134. Its totient is φ = 40402155132.

The previous prime is 40402155119. The next prime is 40402155163. The reversal of 40402155133 is 33155120404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 40021202809 + 380952324 = 200053^2 + 19518^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40402155133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40402155163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201077566 + 20201077567.

It is an arithmetic number, because the mean of its divisors is an integer number (20201077567).

Almost surely, 2^40402155133 is an apocalyptic number.

It is an amenable number.

40402155133 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402155133 is an equidigital number, since it uses as much as digits as its factorization.

40402155133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 40402155133 its reverse (33155120404), we get a palindrome (73557275537).

The spelling of 40402155133 in words is "forty billion, four hundred two million, one hundred fifty-five thousand, one hundred thirty-three".