243145256452 has 48 divisors (see below), whose sum is σ = 505869840000. Its totient is φ = 100049693184.

The previous prime is 243145256407. The next prime is 243145256461. The reversal of 243145256452 is 254652541342.

It is a junction number, because it is equal to n+sod(n) for n = 243145256399 and 243145256408.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 691077 + ... + 981772.

It is an arithmetic number, because the mean of its divisors is an integer number (10538955000).

Almost surely, 2^243145256452 is an apocalyptic number.

It is an amenable number.

243145256452 is an abundant number, since it is smaller than the sum of its proper divisors (262724583548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243145256452 is a wasteful number, since it uses less digits than its factorization.

243145256452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1673068 (or 1673066 counting only the distinct ones).

The product of its digits is 1152000, while the sum is 43.

Adding to 243145256452 its reverse (254652541342), we get a palindrome (497797797794).

The spelling of 243145256452 in words is "two hundred forty-three billion, one hundred forty-five million, two hundred fifty-six thousand, four hundred fifty-two".