143012213 has 4 divisors (see below), whose sum is σ = 143690208. Its totient is φ = 142334220.

The previous prime is 143012171. The next prime is 143012227. The reversal of 143012213 is 312210341.

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 143012213 - 2¹⁴ = 142995829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143012191 and 143012200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143012273) 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, 338681 + ... + 339102.

It is an arithmetic number, because the mean of its divisors is an integer number (35922552).

Almost surely, 2^143012213 is an apocalyptic number.

It is an amenable number.

143012213 is a deficient number, since it is larger than the sum of its proper divisors (677995).

143012213 is an equidigital number, since it uses as much as digits as its factorization.

143012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677994.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 143012213 is about 11958.7713833822. The cubic root of 143012213 is about 522.9470398623.

Adding to 143012213 its reverse (312210341), we get a palindrome (455222554).

The spelling of 143012213 in words is "one hundred forty-three million, twelve thousand, two hundred thirteen".