140120513654 has 12 divisors (see below), whose sum is σ = 231025144812. Its totient is φ = 63691142460.

The previous prime is 140120513651. The next prime is 140120513683. The reversal of 140120513654 is 456315021041.

It is a self number, because there is not a number n which added to its sum of digits gives 140120513654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140120513651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 289504952 + ... + 289505435.

It is an arithmetic number, because the mean of its divisors is an integer number (19252095401).

Almost surely, 2^140120513654 is an apocalyptic number.

140120513654 is a deficient number, since it is larger than the sum of its proper divisors (90904631158).

140120513654 is a wasteful number, since it uses less digits than its factorization.

140120513654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579010411 (or 579010400 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

Adding to 140120513654 its reverse (456315021041), we get a palindrome (596435534695).

The spelling of 140120513654 in words is "one hundred forty billion, one hundred twenty million, five hundred thirteen thousand, six hundred fifty-four".