212406135 has 8 divisors (see below), whose sum is σ = 339849840. Its totient is φ = 113283264.

The previous prime is 212406133. The next prime is 212406137. The reversal of 212406135 is 531604212.

It is an interprime number because it is at equal distance from previous prime (212406133) and next prime (212406137).

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

It is not a de Polignac number, because 212406135 - 2¹ = 212406133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212406133) 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, 7080190 + ... + 7080219.

It is an arithmetic number, because the mean of its divisors is an integer number (42481230).

Almost surely, 2^212406135 is an apocalyptic number.

212406135 is a deficient number, since it is larger than the sum of its proper divisors (127443705).

212406135 is a wasteful number, since it uses less digits than its factorization.

212406135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14160417.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 212406135 is about 14574.1598385636. The cubic root of 212406135 is about 596.6537192589.

The spelling of 212406135 in words is "two hundred twelve million, four hundred six thousand, one hundred thirty-five".