243141425 has 12 divisors (see below), whose sum is σ = 306439836. Its totient is φ = 191323200.

The previous prime is 243141421. The next prime is 243141427. The reversal of 243141425 is 524141342.

It can be written as a sum of positive squares in 6 ways, for example, as 68293696 + 174847729 = 8264^2 + 13223^2 .

It is not a de Polignac number, because 243141425 - 2² = 243141421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 243141394 and 243141403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243141421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78194 + ... + 81243.

It is an arithmetic number, because the mean of its divisors is an integer number (25536653).

Almost surely, 2^243141425 is an apocalyptic number.

243141425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243141425 is a deficient number, since it is larger than the sum of its proper divisors (63298411).

243141425 is a wasteful number, since it uses less digits than its factorization.

243141425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159508 (or 159503 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 243141425 is about 15592.9928172882. The cubic root of 243141425 is about 624.1461834602.

Adding to 243141425 its reverse (524141342), we get a palindrome (767282767).

The spelling of 243141425 in words is "two hundred forty-three million, one hundred forty-one thousand, four hundred twenty-five".