210234401 has 4 divisors (see below), whose sum is σ = 226406292. Its totient is φ = 194062512.

The previous prime is 210234397. The next prime is 210234419. The reversal of 210234401 is 104432012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23775376 + 186459025 = 4876^2 + 13655^2 .

It is a cyclic number.

It is not a de Polignac number, because 210234401 - 2² = 210234397 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210234401.

It is not an unprimeable number, because it can be changed into a prime (210234701) 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 in 3 ways as a sum of consecutive naturals, for example, 8085926 + ... + 8085951.

It is an arithmetic number, because the mean of its divisors is an integer number (56601573).

Almost surely, 2^210234401 is an apocalyptic number.

It is an amenable number.

210234401 is a deficient number, since it is larger than the sum of its proper divisors (16171891).

210234401 is a wasteful number, since it uses less digits than its factorization.

210234401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16171890.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 210234401 is about 14499.4620934709. The cubic root of 210234401 is about 594.6132656235.

Adding to 210234401 its reverse (104432012), we get a palindrome (314666413).

The spelling of 210234401 in words is "two hundred ten million, two hundred thirty-four thousand, four hundred one".