243025931 has 8 divisors (see below), whose sum is σ = 257463360. Its totient is φ = 228604288.

The previous prime is 243025921. The next prime is 243025943. The reversal of 243025931 is 139520342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 243025931 - 2¹⁰ = 243024907 is a prime.

It is a super-2 number, since 2×243025931² = 118123206276833522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243025894 and 243025903.

It is not an unprimeable number, because it can be changed into a prime (243025921) 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 7 ways as a sum of consecutive naturals, for example, 45710 + ... + 50748.

It is an arithmetic number, because the mean of its divisors is an integer number (32182920).

Almost surely, 2^243025931 is an apocalyptic number.

243025931 is a deficient number, since it is larger than the sum of its proper divisors (14437429).

243025931 is a wasteful number, since it uses less digits than its factorization.

243025931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7893.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 243025931 is about 15589.2889831448. The cubic root of 243025931 is about 624.0473431029.

The spelling of 243025931 in words is "two hundred forty-three million, twenty-five thousand, nine hundred thirty-one".