243125630 has 16 divisors (see below), whose sum is σ = 477410544. Its totient is φ = 88409280.

The previous prime is 243125627. The next prime is 243125639. The reversal of 243125630 is 36521342.

243125630 is nontrivially palindromic in base 16.

It is a super-2 number, since 2×243125630² = 118220143925793800, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 243125630.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243125639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1105007 + ... + 1105226.

It is an arithmetic number, because the mean of its divisors is an integer number (29838159).

Almost surely, 2^243125630 is an apocalyptic number.

243125630 is a deficient number, since it is larger than the sum of its proper divisors (234284914).

243125630 is a wasteful number, since it uses less digits than its factorization.

243125630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2210251.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 243125630 is about 15592.4863315637. The cubic root of 243125630 is about 624.1326678661.

Adding to 243125630 its reverse (36521342), we get a palindrome (279646972).

The spelling of 243125630 in words is "two hundred forty-three million, one hundred twenty-five thousand, six hundred thirty".