140538508 has 24 divisors (see below), whose sum is σ = 270817344. Its totient is φ = 63282000.

The previous prime is 140538499. The next prime is 140538511. The reversal of 140538508 is 805835041.

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, 10218 + ... + 19633.

It is an arithmetic number, because the mean of its divisors is an integer number (11284056).

Almost surely, 2^140538508 is an apocalyptic number.

It is an amenable number.

140538508 is a deficient number, since it is larger than the sum of its proper divisors (130278836).

140538508 is a wasteful number, since it uses less digits than its factorization.

140538508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29973 (or 29971 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The square root of 140538508 is about 11854.8938417853. The cubic root of 140538508 is about 519.9143202029.

The spelling of 140538508 in words is "one hundred forty million, five hundred thirty-eight thousand, five hundred eight".