143212453 has 4 divisors (see below), whose sum is σ = 143618508. Its totient is φ = 142806400.

The previous prime is 143212451. The next prime is 143212463. The reversal of 143212453 is 354212341.

143212453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57501889 + 85710564 = 7583^2 + 9258^2 .

It is a cyclic number.

It is not a de Polignac number, because 143212453 - 2¹ = 143212451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143212451) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202498 + ... + 203203.

It is an arithmetic number, because the mean of its divisors is an integer number (35904627).

Almost surely, 2^143212453 is an apocalyptic number.

It is an amenable number.

143212453 is a deficient number, since it is larger than the sum of its proper divisors (406055).

143212453 is an equidigital number, since it uses as much as digits as its factorization.

143212453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406054.

The product of its digits is 2880, while the sum is 25.

The square root of 143212453 is about 11967.1405523625. The cubic root of 143212453 is about 523.1909959051.

Adding to 143212453 its reverse (354212341), we get a palindrome (497424794).

The spelling of 143212453 in words is "one hundred forty-three million, two hundred twelve thousand, four hundred fifty-three".