401135827 has 2 divisors, whose sum is σ = 401135828. Its totient is φ = 401135826.

The previous prime is 401135821. The next prime is 401135849. The reversal of 401135827 is 728531104.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 401135827 - 2⁷ = 401135699 is a prime.

It is not a weakly prime, because it can be changed into another prime (401135821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200567913 + 200567914.

It is an arithmetic number, because the mean of its divisors is an integer number (200567914).

Almost surely, 2^401135827 is an apocalyptic number.

401135827 is a deficient number, since it is larger than the sum of its proper divisors (1).

401135827 is an equidigital number, since it uses as much as digits as its factorization.

401135827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 401135827 is about 20028.3755457101. The cubic root of 401135827 is about 737.5030444000.

The spelling of 401135827 in words is "four hundred one million, one hundred thirty-five thousand, eight hundred twenty-seven".