140668148 has 12 divisors (see below), whose sum is σ = 250814340. Its totient is φ = 69006912.

The previous prime is 140668123. The next prime is 140668211. The reversal of 140668148 is 841866041.

It can be written as a sum of positive squares in 2 ways, for example, as 44863204 + 95804944 = 6698^2 + 9788^2 .

It is a congruent number.

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, 331553 + ... + 331976.

It is an arithmetic number, because the mean of its divisors is an integer number (20901195).

Almost surely, 2^140668148 is an apocalyptic number.

It is an amenable number.

140668148 is a deficient number, since it is larger than the sum of its proper divisors (110146192).

140668148 is a wasteful number, since it uses less digits than its factorization.

140668148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663586 (or 663584 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 38.

The square root of 140668148 is about 11860.3603655201. The cubic root of 140668148 is about 520.0741363727.

The spelling of 140668148 in words is "one hundred forty million, six hundred sixty-eight thousand, one hundred forty-eight".