211201453 has 2 divisors, whose sum is σ = 211201454. Its totient is φ = 211201452.

The previous prime is 211201447. The next prime is 211201457. The reversal of 211201453 is 354102112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143089444 + 68112009 = 11962^2 + 8253^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211201453 is a prime.

It is a super-2 number, since 2×211201453² = 89212107498622418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211201453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211201457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105600726 + 105600727.

It is an arithmetic number, because the mean of its divisors is an integer number (105600727).

Almost surely, 2^211201453 is an apocalyptic number.

It is an amenable number.

211201453 is a deficient number, since it is larger than the sum of its proper divisors (1).

211201453 is an equidigital number, since it uses as much as digits as its factorization.

211201453 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 211201453 is about 14532.7716902179. The cubic root of 211201453 is about 595.5235868567.

Adding to 211201453 its reverse (354102112), we get a palindrome (565303565).

The spelling of 211201453 in words is "two hundred eleven million, two hundred one thousand, four hundred fifty-three".