212034451 has 16 divisors (see below), whose sum is σ = 222748416. Its totient is φ = 201600000.

The previous prime is 212034409. The next prime is 212034463. The reversal of 212034451 is 154430212.

212034451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212034451 - 2⁷ = 212034323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212034481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 754431 + ... + 754711.

It is an arithmetic number, because the mean of its divisors is an integer number (13921776).

Almost surely, 2^212034451 is an apocalyptic number.

212034451 is a deficient number, since it is larger than the sum of its proper divisors (10713965).

212034451 is a wasteful number, since it uses less digits than its factorization.

212034451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 654.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 212034451 is about 14561.4027826992. The cubic root of 212034451 is about 596.3054930939.

Adding to 212034451 its reverse (154430212), we get a palindrome (366464663).

The spelling of 212034451 in words is "two hundred twelve million, thirty-four thousand, four hundred fifty-one".