212029437 has 4 divisors (see below), whose sum is σ = 282705920. Its totient is φ = 141352956.

The previous prime is 212029403. The next prime is 212029439. The reversal of 212029437 is 734920212.

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 not a de Polignac number, because 212029437 - 2¹⁰ = 212028413 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 (212029439) 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, 35338237 + ... + 35338242.

It is an arithmetic number, because the mean of its divisors is an integer number (70676480).

Almost surely, 2^212029437 is an apocalyptic number.

It is an amenable number.

212029437 is a deficient number, since it is larger than the sum of its proper divisors (70676483).

212029437 is an equidigital number, since it uses as much as digits as its factorization.

212029437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70676482.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 212029437 is about 14561.2306142029. The cubic root of 212029437 is about 596.3007927582.

Adding to 212029437 its reverse (734920212), we get a palindrome (946949649).

The spelling of 212029437 in words is "two hundred twelve million, twenty-nine thousand, four hundred thirty-seven".