140133656 has 32 divisors (see below), whose sum is σ = 284225760. Its totient is φ = 64388352.

The previous prime is 140133599. The next prime is 140133661. The reversal of 140133656 is 656331041.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21341 + ... + 27123.

It is an arithmetic number, because the mean of its divisors is an integer number (8882055).

Almost surely, 2^140133656 is an apocalyptic number.

It is an amenable number.

140133656 is an abundant number, since it is smaller than the sum of its proper divisors (144092104).

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

140133656 is a wasteful number, since it uses less digits than its factorization.

140133656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6035 (or 6031 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 140133656 is about 11837.8062156803. The cubic root of 140133656 is about 519.4145976269.

Adding to 140133656 its reverse (656331041), we get a palindrome (796464697).

The spelling of 140133656 in words is "one hundred forty million, one hundred thirty-three thousand, six hundred fifty-six".