452145145543 has 16 divisors (see below), whose sum is σ = 556737138496. Its totient is φ = 357579982080.

The previous prime is 452145145519. The next prime is 452145145631. The reversal of 452145145543 is 345541541254.

It is a cyclic number.

It is not a de Polignac number, because 452145145543 - 2⁵ = 452145145511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 452145145543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (452145145643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 916446 + ... + 1320667.

It is an arithmetic number, because the mean of its divisors is an integer number (34796071156).

Almost surely, 2^452145145543 is an apocalyptic number.

452145145543 is a deficient number, since it is larger than the sum of its proper divisors (104591992953).

452145145543 is a wasteful number, since it uses less digits than its factorization.

452145145543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239354.

The product of its digits is 960000, while the sum is 43.

Adding to 452145145543 its reverse (345541541254), we get a palindrome (797686686797).

The spelling of 452145145543 in words is "four hundred fifty-two billion, one hundred forty-five million, one hundred forty-five thousand, five hundred forty-three".