144245203322531 has 8 divisors (see below), whose sum is σ = 151839951683280. Its totient is φ = 136650744517248.

The previous prime is 144245203322471. The next prime is 144245203322557. The reversal of 144245203322531 is 135223302542441.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-144245203322531 is a prime.

It is a super-2 number, since 2×144245203322531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (144245203324531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71365946 + ... + 73359311.

It is an arithmetic number, because the mean of its divisors is an integer number (18979993960410).

Almost surely, 2^{144245203322531} is an apocalyptic number.

144245203322531 is a deficient number, since it is larger than the sum of its proper divisors (7594748360749).

144245203322531 is a wasteful number, since it uses less digits than its factorization.

144245203322531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144777733.

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

Adding to 144245203322531 its reverse (135223302542441), we get a palindrome (279468505864972).

The spelling of 144245203322531 in words is "one hundred forty-four trillion, two hundred forty-five billion, two hundred three million, three hundred twenty-two thousand, five hundred thirty-one".