212037445 has 32 divisors (see below), whose sum is σ = 271434240. Its totient is φ = 158799360.

The previous prime is 212037443. The next prime is 212037457. The reversal of 212037445 is 544730212.

It is not a de Polignac number, because 212037445 - 2¹ = 212037443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212037443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 568279 + ... + 568651.

It is an arithmetic number, because the mean of its divisors is an integer number (8482320).

Almost surely, 2^212037445 is an apocalyptic number.

It is an amenable number.

212037445 is a deficient number, since it is larger than the sum of its proper divisors (59396795).

212037445 is a wasteful number, since it uses less digits than its factorization.

212037445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 212037445 is about 14561.5055883655. The cubic root of 212037445 is about 596.3082997608.

Adding to 212037445 its reverse (544730212), we get a palindrome (756767657).

The spelling of 212037445 in words is "two hundred twelve million, thirty-seven thousand, four hundred forty-five".