212036445 has 12 divisors (see below), whose sum is σ = 367529916. Its totient is φ = 113086080.

The previous prime is 212036423. The next prime is 212036453. The reversal of 212036445 is 544630212.

212036445 is a `hidden beast` number, since 2 + 12 + 0 + 3 + 644 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 46090521 + 165945924 = 6789^2 + 12882^2 .

It is not a de Polignac number, because 212036445 - 2¹² = 212032349 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2355916 + ... + 2356005.

It is an arithmetic number, because the mean of its divisors is an integer number (30627493).

Almost surely, 2^212036445 is an apocalyptic number.

It is an amenable number.

212036445 is a deficient number, since it is larger than the sum of its proper divisors (155493471).

212036445 is a wasteful number, since it uses less digits than its factorization.

212036445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4711932 (or 4711929 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 212036445 is about 14561.4712512163. The cubic root of 212036445 is about 596.3073623333.

Adding to 212036445 its reverse (544630212), we get a palindrome (756666657).

The spelling of 212036445 in words is "two hundred twelve million, thirty-six thousand, four hundred forty-five".