140315664 has 80 divisors (see below), whose sum is σ = 370940544. Its totient is φ = 45696000.

The previous prime is 140315639. The next prime is 140315683. The reversal of 140315664 is 466513041.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 499204 + ... + 499484.

Almost surely, 2^140315664 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140315664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185470272).

140315664 is an abundant number, since it is smaller than the sum of its proper divisors (230624880).

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

140315664 is a wasteful number, since it uses less digits than its factorization.

140315664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 140315664 is about 11845.4912941591. The cubic root of 140315664 is about 519.6393752077.

The spelling of 140315664 in words is "one hundred forty million, three hundred fifteen thousand, six hundred sixty-four".