140843540 has 24 divisors (see below), whose sum is σ = 305313792. Its totient is φ = 54519840.

The previous prime is 140843531. The next prime is 140843551. The reversal of 140843540 is 45348041.

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, 112964 + ... + 114203.

It is an arithmetic number, because the mean of its divisors is an integer number (12721408).

Almost surely, 2^140843540 is an apocalyptic number.

140843540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140843540 is an abundant number, since it is smaller than the sum of its proper divisors (164470252).

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

140843540 is a wasteful number, since it uses less digits than its factorization.

140843540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227207 (or 227205 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 140843540 is about 11867.7521039159. The cubic root of 140843540 is about 520.2901979788.

The spelling of 140843540 in words is "one hundred forty million, eight hundred forty-three thousand, five hundred forty".