140215412 has 12 divisors (see below), whose sum is σ = 245685216. Its totient is φ = 70019640.

The previous prime is 140215409. The next prime is 140215477. The reversal of 140215412 is 214512041.

It is a happy number.

It is a super-3 number, since 3×140215412³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18368 + ... + 24855.

It is an arithmetic number, because the mean of its divisors is an integer number (20473768).

Almost surely, 2^140215412 is an apocalyptic number.

It is an amenable number.

140215412 is a deficient number, since it is larger than the sum of its proper divisors (105469804).

140215412 is a wasteful number, since it uses less digits than its factorization.

140215412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44038 (or 44036 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 140215412 is about 11841.2588857773. The cubic root of 140215412 is about 519.5155893169.

Adding to 140215412 its reverse (214512041), we get a palindrome (354727453).

The spelling of 140215412 in words is "one hundred forty million, two hundred fifteen thousand, four hundred twelve".