140156664 has 32 divisors (see below), whose sum is σ = 365627520. Its totient is φ = 44687456.

The previous prime is 140156647. The next prime is 140156671. The reversal of 140156664 is 466651041.

It is a happy number.

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, 126402 + ... + 127505.

It is an arithmetic number, because the mean of its divisors is an integer number (11425860).

Almost surely, 2^140156664 is an apocalyptic number.

It is an amenable number.

140156664 is an abundant number, since it is smaller than the sum of its proper divisors (225470856).

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

140156664 is a wasteful number, since it uses less digits than its factorization.

140156664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253939 (or 253935 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 140156664 is about 11838.7779774772. Note that the first 3 decimals coincide. The cubic root of 140156664 is about 519.4430229589.

The spelling of 140156664 in words is "one hundred forty million, one hundred fifty-six thousand, six hundred sixty-four".