212740635 has 16 divisors (see below), whose sum is σ = 360408096. Its totient is φ = 106787328.

The previous prime is 212740609. The next prime is 212740667. The reversal of 212740635 is 536047212.

212740635 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 212740635 - 2⁵ = 212740603 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416884 + ... + 417393.

It is an arithmetic number, because the mean of its divisors is an integer number (22525506).

Almost surely, 2^212740635 is an apocalyptic number.

212740635 is a deficient number, since it is larger than the sum of its proper divisors (147667461).

212740635 is a wasteful number, since it uses less digits than its factorization.

212740635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834302.

The product of its (nonzero) digits is 10080, while the sum is 30.

The square root of 212740635 is about 14585.6311142165. The cubic root of 212740635 is about 596.9667610538.

Adding to 212740635 its reverse (536047212), we get a palindrome (748787847).

The spelling of 212740635 in words is "two hundred twelve million, seven hundred forty thousand, six hundred thirty-five".