243413525 has 12 divisors (see below), whose sum is σ = 303043104. Its totient is φ = 193950000.

The previous prime is 243413509. The next prime is 243413539. The reversal of 243413525 is 525314342.

It is a happy number.

It is not a de Polignac number, because 243413525 - 2⁴ = 243413509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13121 + ... + 25670.

It is an arithmetic number, because the mean of its divisors is an integer number (25253592).

Almost surely, 2^243413525 is an apocalyptic number.

243413525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

243413525 is a deficient number, since it is larger than the sum of its proper divisors (59629579).

243413525 is a wasteful number, since it uses less digits than its factorization.

243413525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39052 (or 39047 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 243413525 is about 15601.7154505522. The cubic root of 243413525 is about 624.3789243618.

Adding to 243413525 its reverse (525314342), we get a palindrome (768727867).

The spelling of 243413525 in words is "two hundred forty-three million, four hundred thirteen thousand, five hundred twenty-five".