210453401 has 2 divisors, whose sum is σ = 210453402. Its totient is φ = 210453400.

The previous prime is 210453371. The next prime is 210453433. The reversal of 210453401 is 104354012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 210250000 + 203401 = 14500^2 + 451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210453401 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (210453461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105226700 + 105226701.

It is an arithmetic number, because the mean of its divisors is an integer number (105226701).

Almost surely, 2^210453401 is an apocalyptic number.

It is an amenable number.

210453401 is a deficient number, since it is larger than the sum of its proper divisors (1).

210453401 is an equidigital number, since it uses as much as digits as its factorization.

210453401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 210453401 is about 14507.0121320691. The cubic root of 210453401 is about 594.8196624106.

The spelling of 210453401 in words is "two hundred ten million, four hundred fifty-three thousand, four hundred one".