143214331 has 4 divisors (see below), whose sum is σ = 154230832. Its totient is φ = 132197832.

The previous prime is 143214319. The next prime is 143214349. The reversal of 143214331 is 133412341.

143214331 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, and also an emirpimes, since its reverse is a distinct semiprime: 133412341 = 277 ⋅481633.

It is not a de Polignac number, because 143214331 - 2¹³ = 143206139 is a prime.

It is a super-2 number, since 2×143214331² = 41020689207555122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143214361) 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, 5508231 + ... + 5508256.

It is an arithmetic number, because the mean of its divisors is an integer number (38557708).

Almost surely, 2^143214331 is an apocalyptic number.

143214331 is a deficient number, since it is larger than the sum of its proper divisors (11016501).

143214331 is a wasteful number, since it uses less digits than its factorization.

143214331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11016500.

The product of its digits is 864, while the sum is 22.

The square root of 143214331 is about 11967.2190169646. The cubic root of 143214331 is about 523.1932828301.

Adding to 143214331 its reverse (133412341), we get a palindrome (276626672).

The spelling of 143214331 in words is "one hundred forty-three million, two hundred fourteen thousand, three hundred thirty-one".