140235216 has 80 divisors (see below), whose sum is σ = 403688448. Its totient is φ = 41584000.

The previous prime is 140235203. The next prime is 140235229. The reversal of 140235216 is 612532041.

It is an interprime number because it is at equal distance from previous prime (140235203) and next prime (140235229).

It is a Harshad number since it is a multiple of its sum of digits (24).

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 15 ways as a sum of consecutive naturals, for example, 21991 + ... + 27641.

Almost surely, 2^140235216 is an apocalyptic number.

140235216 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 140235216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201844224).

140235216 is an abundant number, since it is smaller than the sum of its proper divisors (263453232).

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

140235216 is a wasteful number, since it uses less digits than its factorization.

140235216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5720 (or 5714 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 140235216 is about 11842.0950849079. The cubic root of 140235216 is about 519.5400469288.

Adding to 140235216 its reverse (612532041), we get a palindrome (752767257).

The spelling of 140235216 in words is "one hundred forty million, two hundred thirty-five thousand, two hundred sixteen".