212429 has 4 divisors (see below), whose sum is σ = 242784. Its totient is φ = 182076.

The previous prime is 212423. The next prime is 212437. The reversal of 212429 is 924212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212429 - 2¹² = 208333 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 212429.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212423) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15167 + ... + 15180.

It is an arithmetic number, because the mean of its divisors is an integer number (60696).

2²¹²⁴²⁹ is an apocalyptic number.

It is an amenable number.

212429 is a deficient number, since it is larger than the sum of its proper divisors (30355).

212429 is an equidigital number, since it uses as much as digits as its factorization.

212429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30354.

The product of its digits is 288, while the sum is 20.

The square root of 212429 is about 460.9002061184. The cubic root of 212429 is about 59.6675127928.

The spelling of 212429 in words is "two hundred twelve thousand, four hundred twenty-nine".