243125547603 has 4 divisors (see below), whose sum is σ = 324167396808. Its totient is φ = 162083698400.

The previous prime is 243125547589. The next prime is 243125547649. The reversal of 243125547603 is 306745521342.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 243125547603 - 2¹³ = 243125539411 is a prime.

It is a super-2 number, since 2×243125547603² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243125547503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40520924598 + ... + 40520924603.

It is an arithmetic number, because the mean of its divisors is an integer number (81041849202).

Almost surely, 2^243125547603 is an apocalyptic number.

243125547603 is a deficient number, since it is larger than the sum of its proper divisors (81041849205).

243125547603 is an equidigital number, since it uses as much as digits as its factorization.

243125547603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81041849204.

The product of its (nonzero) digits is 604800, while the sum is 42.

The spelling of 243125547603 in words is "two hundred forty-three billion, one hundred twenty-five million, five hundred forty-seven thousand, six hundred three".