140304212 has 24 divisors (see below), whose sum is σ = 251911296. Its totient is φ = 68343488.

The previous prime is 140304187. The next prime is 140304223. The reversal of 140304212 is 212403041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42203 + ... + 45405.

It is an arithmetic number, because the mean of its divisors is an integer number (10496304).

Almost surely, 2^140304212 is an apocalyptic number.

It is an amenable number.

140304212 is a deficient number, since it is larger than the sum of its proper divisors (111607084).

140304212 is a wasteful number, since it uses less digits than its factorization.

140304212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487 (or 3485 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140304212 is about 11845.0078936234. The cubic root of 140304212 is about 519.6252378647.

Adding to 140304212 its reverse (212403041), we get a palindrome (352707253).

The spelling of 140304212 in words is "one hundred forty million, three hundred four thousand, two hundred twelve".