140395216 has 20 divisors (see below), whose sum is σ = 292940452. Its totient is φ = 64797696.

The previous prime is 140395183. The next prime is 140395219. The reversal of 140395216 is 612593041.

It can be written as a sum of positive squares in 2 ways, for example, as 68823616 + 71571600 = 8296^2 + 8460^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140395219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337281 + ... + 337696.

Almost surely, 2^140395216 is an apocalyptic number.

140395216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

140395216 is an abundant number, since it is smaller than the sum of its proper divisors (152545236).

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

140395216 is a wasteful number, since it uses less digits than its factorization.

140395216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674998 (or 674992 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 140395216 is about 11848.8487204454. The cubic root of 140395216 is about 519.7375598784.

The spelling of 140395216 in words is "one hundred forty million, three hundred ninety-five thousand, two hundred sixteen".