140681580 has 48 divisors (see below), whose sum is σ = 424211424. Its totient is φ = 34629120.

The previous prime is 140681533. The next prime is 140681591. The reversal of 140681580 is 85186041.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89401 + ... + 90960.

It is an arithmetic number, because the mean of its divisors is an integer number (8837738).

Almost surely, 2^140681580 is an apocalyptic number.

140681580 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140681580 is an abundant number, since it is smaller than the sum of its proper divisors (283529844).

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

140681580 is a wasteful number, since it uses less digits than its factorization.

140681580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180386 (or 180384 counting only the distinct ones).

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

The square root of 140681580 is about 11860.9266079847. The cubic root of 140681580 is about 520.0906893108.

The spelling of 140681580 in words is "one hundred forty million, six hundred eighty-one thousand, five hundred eighty".