140661140 has 24 divisors (see below), whose sum is σ = 299800032. Its totient is φ = 55424160.

The previous prime is 140661139. The next prime is 140661163. The reversal of 140661140 is 41166041.

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, 51146 + ... + 53825.

It is an arithmetic number, because the mean of its divisors is an integer number (12491668).

Almost surely, 2^140661140 is an apocalyptic number.

140661140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140661140 is an abundant number, since it is smaller than the sum of its proper divisors (159138892).

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

140661140 is a wasteful number, since it uses less digits than its factorization.

140661140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105047 (or 105045 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 140661140 is about 11860.0649239370. The cubic root of 140661140 is about 520.0654996388.

The spelling of 140661140 in words is "one hundred forty million, six hundred sixty-one thousand, one hundred forty".