143055313 has 4 divisors (see below), whose sum is σ = 150584560. Its totient is φ = 135526068.

The previous prime is 143055259. The next prime is 143055317. The reversal of 143055313 is 313550341.

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, and also an emirpimes, since its reverse is a distinct semiprime: 313550341 = 13 ⋅24119257.

It is a cyclic number.

It is not a de Polignac number, because 143055313 - 2²¹ = 140958161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143055317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3764595 + ... + 3764632.

It is an arithmetic number, because the mean of its divisors is an integer number (37646140).

Almost surely, 2^143055313 is an apocalyptic number.

It is an amenable number.

143055313 is a deficient number, since it is larger than the sum of its proper divisors (7529247).

143055313 is an equidigital number, since it uses as much as digits as its factorization.

143055313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7529246.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 143055313 is about 11960.5732722140. The cubic root of 143055313 is about 522.9995686011. Note that the first 3 decimals are identical.

The spelling of 143055313 in words is "one hundred forty-three million, fifty-five thousand, three hundred thirteen".