140140502104421 has 48 divisors (see below), whose sum is σ = 181862230057200. Its totient is φ = 106910871846912.

The previous prime is 140140502104411. The next prime is 140140502104439. The reversal of 140140502104421 is 124401205041041.

It can be written as a sum of positive squares in 8 ways, for example, as 18933063273796 + 121207438830625 = 4351214^2 + 11009425^2 .

It is not a de Polignac number, because 140140502104421 - 2³⁰ = 140139428362597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140140502104411) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8365925 + ... + 18715493.

It is an arithmetic number, because the mean of its divisors is an integer number (3788796459525).

Almost surely, 2^{140140502104421} is an apocalyptic number.

It is an amenable number.

140140502104421 is a deficient number, since it is larger than the sum of its proper divisors (41721727952779).

140140502104421 is a wasteful number, since it uses less digits than its factorization.

140140502104421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10350358 (or 10350351 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 29.

Adding to 140140502104421 its reverse (124401205041041), we get a palindrome (264541707145462).

The spelling of 140140502104421 in words is "one hundred forty trillion, one hundred forty billion, five hundred two million, one hundred four thousand, four hundred twenty-one".