140561880 has 64 divisors (see below), whose sum is σ = 422604000. Its totient is φ = 37401600.

The previous prime is 140561851. The next prime is 140561887. The reversal of 140561880 is 88165041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140561887) 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, 71146 + ... + 73094.

Almost surely, 2^140561880 is an apocalyptic number.

140561880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140561880 is an abundant number, since it is smaller than the sum of its proper divisors (282042120).

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

140561880 is a wasteful number, since it uses less digits than its factorization.

140561880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564 (or 2560 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 140561880 is about 11855.8795540441. The cubic root of 140561880 is about 519.9431397394.

The spelling of 140561880 in words is "one hundred forty million, five hundred sixty-one thousand, eight hundred eighty".