450155401 has 2 divisors, whose sum is σ = 450155402. Its totient is φ = 450155400.

The previous prime is 450155389. The next prime is 450155411. The reversal of 450155401 is 104551054.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 344065401 + 106090000 = 18549^2 + 10300^2 .

It is a cyclic number.

It is not a de Polignac number, because 450155401 - 2⁹ = 450154889 is a prime.

It is not a weakly prime, because it can be changed into another prime (450155411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 225077700 + 225077701.

It is an arithmetic number, because the mean of its divisors is an integer number (225077701).

Almost surely, 2^450155401 is an apocalyptic number.

It is an amenable number.

450155401 is a deficient number, since it is larger than the sum of its proper divisors (1).

450155401 is an equidigital number, since it uses as much as digits as its factorization.

450155401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 450155401 is about 21216.8659561209. The cubic root of 450155401 is about 766.3976335392.

The spelling of 450155401 in words is "four hundred fifty million, one hundred fifty-five thousand, four hundred one".