401115133 has 2 divisors, whose sum is σ = 401115134. Its totient is φ = 401115132.

The previous prime is 401115109. The next prime is 401115151. The reversal of 401115133 is 331511104.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 395930404 + 5184729 = 19898^2 + 2277^2 .

It is a cyclic number.

It is not a de Polignac number, because 401115133 - 2²¹ = 399017981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 401115133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (401115103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200557566 + 200557567.

It is an arithmetic number, because the mean of its divisors is an integer number (200557567).

Almost surely, 2^401115133 is an apocalyptic number.

It is an amenable number.

401115133 is a deficient number, since it is larger than the sum of its proper divisors (1).

401115133 is an equidigital number, since it uses as much as digits as its factorization.

401115133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 401115133 is about 20027.8589220116. The cubic root of 401115133 is about 737.4903619539.

Adding to 401115133 its reverse (331511104), we get a palindrome (732626237).

The spelling of 401115133 in words is "four hundred one million, one hundred fifteen thousand, one hundred thirty-three".