212032145 has 8 divisors (see below), whose sum is σ = 274010856. Its totient is φ = 156577536.

The previous prime is 212032133. The next prime is 212032151. The reversal of 212032145 is 541230212.

It can be written as a sum of positive squares in 4 ways, for example, as 26173456 + 185858689 = 5116^2 + 13633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212032145 - 2⁶ = 212032081 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1630952 + ... + 1631081.

It is an arithmetic number, because the mean of its divisors is an integer number (34251357).

Almost surely, 2^212032145 is an apocalyptic number.

It is an amenable number.

212032145 is a deficient number, since it is larger than the sum of its proper divisors (61978711).

212032145 is a wasteful number, since it uses less digits than its factorization.

212032145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262051.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 212032145 is about 14561.3236005523. The cubic root of 212032145 is about 596.3033313612.

Adding to 212032145 its reverse (541230212), we get a palindrome (753262357).

The spelling of 212032145 in words is "two hundred twelve million, thirty-two thousand, one hundred forty-five".