212942135 has 16 divisors (see below), whose sum is σ = 296151552. Its totient is φ = 143959200.

The previous prime is 212942087. The next prime is 212942167. The reversal of 212942135 is 531249212.

It is not a de Polignac number, because 212942135 - 2⁶ = 212942071 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212942098 and 212942107.

It is a congruent number.

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, 40361 + ... + 45330.

It is an arithmetic number, because the mean of its divisors is an integer number (18509472).

Almost surely, 2^212942135 is an apocalyptic number.

212942135 is a deficient number, since it is larger than the sum of its proper divisors (83209417).

212942135 is an equidigital number, since it uses as much as digits as its factorization.

212942135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85774.

The product of its digits is 4320, while the sum is 29.

The square root of 212942135 is about 14592.5369624339. The cubic root of 212942135 is about 597.1551764681.

The spelling of 212942135 in words is "two hundred twelve million, nine hundred forty-two thousand, one hundred thirty-five".