401121451 has 2 divisors, whose sum is σ = 401121452. Its totient is φ = 401121450.

The previous prime is 401121419. The next prime is 401121467. The reversal of 401121451 is 154121104.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 401121451 - 2⁵ = 401121419 is a prime.

It is not a weakly prime, because it can be changed into another prime (401121251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200560725 + 200560726.

It is an arithmetic number, because the mean of its divisors is an integer number (200560726).

Almost surely, 2^401121451 is an apocalyptic number.

401121451 is a deficient number, since it is larger than the sum of its proper divisors (1).

401121451 is an equidigital number, since it uses as much as digits as its factorization.

401121451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 401121451 is about 20028.0166516807. The cubic root of 401121451 is about 737.4942340256.

Adding to 401121451 its reverse (154121104), we get a palindrome (555242555).

The spelling of 401121451 in words is "four hundred one million, one hundred twenty-one thousand, four hundred fifty-one".