140635521261244 has 12 divisors (see below), whose sum is σ = 248649400993504. Its totient is φ = 69592835263104.

The previous prime is 140635521261241. The next prime is 140635521261271. The reversal of 140635521261244 is 442162125536041.

It is a junction number, because it is equal to n+sod(n) for n = 140635521261194 and 140635521261203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140635521261241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181231341444 + ... + 181231342219.

Almost surely, 2^{140635521261244} is an apocalyptic number.

It is an amenable number.

140635521261244 is a deficient number, since it is larger than the sum of its proper divisors (108013879732260).

140635521261244 is a wasteful number, since it uses less digits than its factorization.

140635521261244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362462683764 (or 362462683762 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

Adding to 140635521261244 its reverse (442162125536041), we get a palindrome (582797646797285).

The spelling of 140635521261244 in words is "one hundred forty trillion, six hundred thirty-five billion, five hundred twenty-one million, two hundred sixty-one thousand, two hundred forty-four".