135243125243465 has 8 divisors (see below), whose sum is σ = 162679081440960. Its totient is φ = 107936279428912.

The previous prime is 135243125243461. The next prime is 135243125243537. The reversal of 135243125243465 is 564342521342531.

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 135243125243465 - 2² = 135243125243461 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135243125243461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32277593429 + ... + 32277597618.

It is an arithmetic number, because the mean of its divisors is an integer number (20334885180120).

Almost surely, 2^{135243125243465} is an apocalyptic number.

It is an amenable number.

135243125243465 is a deficient number, since it is larger than the sum of its proper divisors (27435956197495).

135243125243465 is an equidigital number, since it uses as much as digits as its factorization.

135243125243465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64555191471.

The product of its digits is 10368000, while the sum is 50.

Adding to 135243125243465 its reverse (564342521342531), we get a palindrome (699585646585996).

The spelling of 135243125243465 in words is "one hundred thirty-five trillion, two hundred forty-three billion, one hundred twenty-five million, two hundred forty-three thousand, four hundred sixty-five".