230040545 has 24 divisors (see below), whose sum is σ = 328964328. Its totient is φ = 153888000.

The previous prime is 230040539. The next prime is 230040571. The reversal of 230040545 is 545040032.

It can be written as a sum of positive squares in 4 ways, for example, as 29506624 + 200533921 = 5432^2 + 14161^2 .

It is not a de Polignac number, because 230040545 - 2²⁴ = 213263329 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 230040545.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1406 + ... + 21495.

It is an arithmetic number, because the mean of its divisors is an integer number (13706847).

Almost surely, 2^230040545 is an apocalyptic number.

It is an amenable number.

230040545 is a deficient number, since it is larger than the sum of its proper divisors (98923783).

230040545 is a wasteful number, since it uses less digits than its factorization.

230040545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22961 (or 22954 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 230040545 is about 15167.0875582625. The cubic root of 230040545 is about 612.7285677556.

Adding to 230040545 its reverse (545040032), we get a palindrome (775080577).

The spelling of 230040545 in words is "two hundred thirty million, forty thousand, five hundred forty-five".