230319453 has 72 divisors (see below), whose sum is σ = 395209728. Its totient is φ = 118879488.

The previous prime is 230319431. The next prime is 230319497. The reversal of 230319453 is 354913032.

230319453 is a nontrivial binomial coefficient, being equal to C(21463, 2).

It is not a de Polignac number, because 230319453 - 2¹³ = 230311261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230319453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230319253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1813476 + ... + 1813602.

It is an arithmetic number, because the mean of its divisors is an integer number (5489024).

Almost surely, 2^230319453 is an apocalyptic number.

230319453 is the 21462-nd triangular number.

It is an amenable number.

230319453 is a deficient number, since it is larger than the sum of its proper divisors (164890275).

230319453 is a wasteful number, since it uses less digits than its factorization.

230319453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 230319453 is about 15176.2792870980. The cubic root of 230319453 is about 612.9760978592.

The spelling of 230319453 in words is "two hundred thirty million, three hundred nineteen thousand, four hundred fifty-three".