145440504243 has 48 divisors (see below), whose sum is σ = 230586276960. Its totient is φ = 87960204288.

The previous prime is 145440504227. The next prime is 145440504247. The reversal of 145440504243 is 342405044541.

145440504243 is a `hidden beast` number, since 1 + 4 + 5 + 4 + 405 + 0 + 4 + 243 = 666.

It is not a de Polignac number, because 145440504243 - 2⁴ = 145440504227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 145440504198 and 145440504207.

It is not an unprimeable number, because it can be changed into a prime (145440504247) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 485673 + ... + 725781.

It is an arithmetic number, because the mean of its divisors is an integer number (4803880770).

Almost surely, 2^145440504243 is an apocalyptic number.

145440504243 is a deficient number, since it is larger than the sum of its proper divisors (85145772717).

145440504243 is a wasteful number, since it uses less digits than its factorization.

145440504243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240276 (or 240273 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 36.

Adding to 145440504243 its reverse (342405044541), we get a palindrome (487845548784).

The spelling of 145440504243 in words is "one hundred forty-five billion, four hundred forty million, five hundred four thousand, two hundred forty-three".