143486813 has 8 divisors (see below), whose sum is σ = 144996600. Its totient is φ = 141984000.

The previous prime is 143486807. The next prime is 143486843. The reversal of 143486813 is 318684341.

It can be written as a sum of positive squares in 4 ways, for example, as 42745444 + 100741369 = 6538^2 + 10037^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 143486813 - 2⁴ = 143486797 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 (143486843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46313 + ... + 49313.

It is an arithmetic number, because the mean of its divisors is an integer number (18124575).

Almost surely, 2^143486813 is an apocalyptic number.

It is an amenable number.

143486813 is a deficient number, since it is larger than the sum of its proper divisors (1509787).

143486813 is a wasteful number, since it uses less digits than its factorization.

143486813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3487.

The product of its digits is 55296, while the sum is 38.

The square root of 143486813 is about 11978.5981233198. The cubic root of 143486813 is about 523.5248847345.

The spelling of 143486813 in words is "one hundred forty-three million, four hundred eighty-six thousand, eight hundred thirteen".