212140015 has 8 divisors (see below), whose sum is σ = 254852928. Its totient is φ = 169522080.

The previous prime is 212140013. The next prime is 212140031. The reversal of 212140015 is 510041212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212140015 - 2¹ = 212140013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212140013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18732 + ... + 27841.

It is an arithmetic number, because the mean of its divisors is an integer number (31856616).

Almost surely, 2^212140015 is an apocalyptic number.

212140015 is a deficient number, since it is larger than the sum of its proper divisors (42712913).

212140015 is an equidigital number, since it uses as much as digits as its factorization.

212140015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47489.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 212140015 is about 14565.0271197825. The cubic root of 212140015 is about 596.4044360552.

Adding to 212140015 its reverse (510041212), we get a palindrome (722181227).

The spelling of 212140015 in words is "two hundred twelve million, one hundred forty thousand, fifteen".