140666354 has 8 divisors (see below), whose sum is σ = 211070448. Its totient is φ = 70309540.

The previous prime is 140666311. The next prime is 140666363. The reversal of 140666354 is 453666041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3092 + ... + 17055.

It is an arithmetic number, because the mean of its divisors is an integer number (26383806).

Almost surely, 2^140666354 is an apocalyptic number.

140666354 is a deficient number, since it is larger than the sum of its proper divisors (70404094).

140666354 is a wasteful number, since it uses less digits than its factorization.

140666354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23640.

The product of its (nonzero) digits is 51840, while the sum is 35.

The square root of 140666354 is about 11860.2847351992. The cubic root of 140666354 is about 520.0719254553.

The spelling of 140666354 in words is "one hundred forty million, six hundred sixty-six thousand, three hundred fifty-four".