144513235302242 has 4 divisors (see below), whose sum is σ = 216769852953366. Its totient is φ = 72256617651120.

The previous prime is 144513235302239. The next prime is 144513235302251. The reversal of 144513235302242 is 242203532315441.

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

It can be written as a sum of positive squares in only one way, i.e., 137857397730361 + 6655837571881 = 11741269^2 + 2579891^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 144513235302242.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 36128308825559 + ... + 36128308825562.

Almost surely, 2^{144513235302242} is an apocalyptic number.

144513235302242 is a deficient number, since it is larger than the sum of its proper divisors (72256617651124).

144513235302242 is an equidigital number, since it uses as much as digits as its factorization.

144513235302242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72256617651123.

The product of its (nonzero) digits is 691200, while the sum is 41.

Adding to 144513235302242 its reverse (242203532315441), we get a palindrome (386716767617683).

The spelling of 144513235302242 in words is "one hundred forty-four trillion, five hundred thirteen billion, two hundred thirty-five million, three hundred two thousand, two hundred forty-two".