140212415 has 32 divisors (see below), whose sum is σ = 198374400. Its totient is φ = 93139200.

The previous prime is 140212403. The next prime is 140212417. The reversal of 140212415 is 514212041.

It is a happy number.

It is not a de Polignac number, because 140212415 - 2⁸ = 140212159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140212417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 285320 + ... + 285810.

It is an arithmetic number, because the mean of its divisors is an integer number (6199200).

Almost surely, 2^140212415 is an apocalyptic number.

140212415 is a deficient number, since it is larger than the sum of its proper divisors (58161985).

140212415 is a wasteful number, since it uses less digits than its factorization.

140212415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 743.

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

The square root of 140212415 is about 11841.1323360564. The cubic root of 140212415 is about 519.5118878709.

Adding to 140212415 its reverse (514212041), we get a palindrome (654424456).

The spelling of 140212415 in words is "one hundred forty million, two hundred twelve thousand, four hundred fifteen".