140103656 has 64 divisors (see below), whose sum is σ = 331776000. Its totient is φ = 53876160.

The previous prime is 140103643. The next prime is 140103659. The reversal of 140103656 is 656301041.

It is not an unprimeable number, because it can be changed into a prime (140103659) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47225 + ... + 50103.

It is an arithmetic number, because the mean of its divisors is an integer number (5184000).

Almost surely, 2^140103656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140103656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165888000).

140103656 is an abundant number, since it is smaller than the sum of its proper divisors (191672344).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140103656 is a wasteful number, since it uses less digits than its factorization.

140103656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2982 (or 2978 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 140103656 is about 11836.5390211835. The cubic root of 140103656 is about 519.3775293249.

Adding to 140103656 its reverse (656301041), we get a palindrome (796404697).

The spelling of 140103656 in words is "one hundred forty million, one hundred three thousand, six hundred fifty-six".