140815216 has 40 divisors (see below), whose sum is σ = 289762704. Its totient is φ = 66063360.

The previous prime is 140815193. The next prime is 140815219. The reversal of 140815216 is 612518041.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140815219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124831 + ... + 125953.

Almost surely, 2^140815216 is an apocalyptic number.

140815216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140815216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144881352).

140815216 is an abundant number, since it is smaller than the sum of its proper divisors (148947488).

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

140815216 is a wasteful number, since it uses less digits than its factorization.

140815216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1609 (or 1603 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 140815216 is about 11866.5587261008. The cubic root of 140815216 is about 520.2553184059.

The spelling of 140815216 in words is "one hundred forty million, eight hundred fifteen thousand, two hundred sixteen".