213450441 has 4 divisors (see below), whose sum is σ = 284600592. Its totient is φ = 142300292.

The previous prime is 213450439. The next prime is 213450463. The reversal of 213450441 is 144054312.

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 a cyclic number.

It is not a de Polignac number, because 213450441 - 2¹ = 213450439 is a prime.

It is a super-2 number, since 2×213450441² = 91122181526188962, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213450401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35575071 + ... + 35575076.

It is an arithmetic number, because the mean of its divisors is an integer number (71150148).

Almost surely, 2^213450441 is an apocalyptic number.

It is an amenable number.

213450441 is a deficient number, since it is larger than the sum of its proper divisors (71150151).

213450441 is an equidigital number, since it uses as much as digits as its factorization.

213450441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71150150.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 213450441 is about 14609.9432237090. The cubic root of 213450441 is about 597.6299476353.

The spelling of 213450441 in words is "two hundred thirteen million, four hundred fifty thousand, four hundred forty-one".