140633540 has 24 divisors (see below), whose sum is σ = 298892160. Its totient is φ = 55575008.

The previous prime is 140633533. The next prime is 140633599. The reversal of 140633540 is 45336041.

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, 40700 + ... + 44019.

It is an arithmetic number, because the mean of its divisors is an integer number (12453840).

Almost surely, 2^140633540 is an apocalyptic number.

140633540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140633540 is an abundant number, since it is smaller than the sum of its proper divisors (158258620).

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

140633540 is a wasteful number, since it uses less digits than its factorization.

140633540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84811 (or 84809 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 140633540 is about 11858.9012981810. The cubic root of 140633540 is about 520.0314823148.

Adding to 140633540 its reverse (45336041), we get a palindrome (185969581).

The spelling of 140633540 in words is "one hundred forty million, six hundred thirty-three thousand, five hundred forty".