143235245442644 has 6 divisors (see below), whose sum is σ = 250661679524634. Its totient is φ = 71617622721320.

The previous prime is 143235245442599. The next prime is 143235245442647. The reversal of 143235245442644 is 446244542532341.

It can be written as a sum of positive squares in only one way, i.e., 117228692928400 + 26006552514244 = 10827220^2 + 5099662^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143235245442647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17904405680327 + ... + 17904405680334.

It is an arithmetic number, because the mean of its divisors is an integer number (41776946587439).

Almost surely, 2^{143235245442644} is an apocalyptic number.

It is an amenable number.

143235245442644 is a deficient number, since it is larger than the sum of its proper divisors (107426434081990).

143235245442644 is a wasteful number, since it uses less digits than its factorization.

143235245442644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35808811360665 (or 35808811360663 counting only the distinct ones).

The product of its digits is 44236800, while the sum is 53.

Adding to 143235245442644 its reverse (446244542532341), we get a palindrome (589479787974985).

The spelling of 143235245442644 in words is "one hundred forty-three trillion, two hundred thirty-five billion, two hundred forty-five million, four hundred forty-two thousand, six hundred forty-four".