143011013 has 4 divisors (see below), whose sum is σ = 145709388. Its totient is φ = 140312640.

The previous prime is 143011009. The next prime is 143011019. The reversal of 143011013 is 310110341.

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 76702564 + 66308449 = 8758^2 + 8143^2 .

It is a cyclic number.

It is not a de Polignac number, because 143011013 - 2² = 143011009 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 (143011019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1349108 + ... + 1349213.

It is an arithmetic number, because the mean of its divisors is an integer number (36427347).

Almost surely, 2^143011013 is an apocalyptic number.

It is an amenable number.

143011013 is a deficient number, since it is larger than the sum of its proper divisors (2698375).

143011013 is an equidigital number, since it uses as much as digits as its factorization.

143011013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698374.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 143011013 is about 11958.7212108988. The cubic root of 143011013 is about 522.9455771942.

Adding to 143011013 its reverse (310110341), we get a palindrome (453121354).

The spelling of 143011013 in words is "one hundred forty-three million, eleven thousand, thirteen".