401121089 has 2 divisors, whose sum is σ = 401121090. Its totient is φ = 401121088.

The previous prime is 401121079. The next prime is 401121101. The reversal of 401121089 is 980121104.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 400320064 + 801025 = 20008^2 + 895^2 .

It is a cyclic number.

It is not a de Polignac number, because 401121089 - 2⁴ = 401121073 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (401121029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200560544 + 200560545.

It is an arithmetic number, because the mean of its divisors is an integer number (200560545).

Almost surely, 2^401121089 is an apocalyptic number.

It is an amenable number.

401121089 is a deficient number, since it is larger than the sum of its proper divisors (1).

401121089 is an equidigital number, since it uses as much as digits as its factorization.

401121089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 401121089 is about 20028.0076143385. The cubic root of 401121089 is about 737.4940121701.

The spelling of 401121089 in words is "four hundred one million, one hundred twenty-one thousand, eighty-nine".