145204521043 has 4 divisors (see below), whose sum is σ = 147665614680. Its totient is φ = 142743427408.

The previous prime is 145204520999. The next prime is 145204521053. The reversal of 145204521043 is 340125402541.

145204521043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145204521043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 145204520996 and 145204521014.

It is not an unprimeable number, because it can be changed into a prime (145204521053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230546730 + ... + 1230546847.

It is an arithmetic number, because the mean of its divisors is an integer number (36916403670).

Almost surely, 2^145204521043 is an apocalyptic number.

145204521043 is a deficient number, since it is larger than the sum of its proper divisors (2461093637).

145204521043 is an equidigital number, since it uses as much as digits as its factorization.

145204521043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461093636.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 145204521043 its reverse (340125402541), we get a palindrome (485329923584).

The spelling of 145204521043 in words is "one hundred forty-five billion, two hundred four million, five hundred twenty-one thousand, forty-three".