145440504242 has 8 divisors (see below), whose sum is σ = 237993552432. Its totient is φ = 66109320100.

The previous prime is 145440504227. The next prime is 145440504247. The reversal of 145440504242 is 242405044541.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3305465984 + ... + 3305466027.

It is an arithmetic number, because the mean of its divisors is an integer number (29749194054).

Almost surely, 2^145440504242 is an apocalyptic number.

145440504242 is a deficient number, since it is larger than the sum of its proper divisors (92553048190).

145440504242 is a wasteful number, since it uses less digits than its factorization.

145440504242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6610932024.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 145440504242 its reverse (242405044541), we get a palindrome (387845548783).

The spelling of 145440504242 in words is "one hundred forty-five billion, four hundred forty million, five hundred four thousand, two hundred forty-two".