401130889 has 2 divisors, whose sum is σ = 401130890. Its totient is φ = 401130888.

The previous prime is 401130887. The next prime is 401130923. The reversal of 401130889 is 988031104.

It is a happy number.

It is an a-pointer prime, because the next prime (401130923) can be obtained adding 401130889 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 390457600 + 10673289 = 19760^2 + 3267^2 .

It is a cyclic number.

It is not a de Polignac number, because 401130889 - 2¹ = 401130887 is a prime.

Together with 401130887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (401130887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200565444 + 200565445.

It is an arithmetic number, because the mean of its divisors is an integer number (200565445).

Almost surely, 2^401130889 is an apocalyptic number.

It is an amenable number.

401130889 is a deficient number, since it is larger than the sum of its proper divisors (1).

401130889 is an equidigital number, since it uses as much as digits as its factorization.

401130889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 401130889 is about 20028.2522702307. The cubic root of 401130889 is about 737.5000181557.

The spelling of 401130889 in words is "four hundred one million, one hundred thirty thousand, eight hundred eighty-nine".