140503212 has 72 divisors (see below), whose sum is σ = 364618800. Its totient is φ = 45601920.

The previous prime is 140503201. The next prime is 140503213. The reversal of 140503212 is 212305041.

140503212 is a `hidden beast` number, since 140 + 503 + 21 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (140503213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 402414 + ... + 402762.

It is an arithmetic number, because the mean of its divisors is an integer number (5064150).

Almost surely, 2^140503212 is an apocalyptic number.

140503212 is a gapful number since it is divisible by the number (12) 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 140503212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182309400).

140503212 is an abundant number, since it is smaller than the sum of its proper divisors (224115588).

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

140503212 is a wasteful number, since it uses less digits than its factorization.

140503212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 618 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 140503212 is about 11853.4050803978. The cubic root of 140503212 is about 519.8707913685.

Adding to 140503212 its reverse (212305041), we get a palindrome (352808253).

It can be divided in two parts, 140503 and 212, that added together give a triangular number (140715 = T₅₃₀).

The spelling of 140503212 in words is "one hundred forty million, five hundred three thousand, two hundred twelve".