140312400244 has 6 divisors (see below), whose sum is σ = 245546700434. Its totient is φ = 70156200120.

The previous prime is 140312400233. The next prime is 140312400253. The reversal of 140312400244 is 442004213041.

It can be written as a sum of positive squares in only one way, i.e., 123438390244 + 16874010000 = 351338^2 + 129900^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17539050027 + ... + 17539050034.

Almost surely, 2^140312400244 is an apocalyptic number.

It is an amenable number.

140312400244 is a deficient number, since it is larger than the sum of its proper divisors (105234300190).

140312400244 is a wasteful number, since it uses less digits than its factorization.

140312400244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35078100065 (or 35078100063 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 140312400244 its reverse (442004213041), we get a palindrome (582316613285).

The spelling of 140312400244 in words is "one hundred forty billion, three hundred twelve million, four hundred thousand, two hundred forty-four".