143307139 has 4 divisors (see below), whose sum is σ = 150849640. Its totient is φ = 135764640.

The previous prime is 143307119. The next prime is 143307149. The reversal of 143307139 is 931703341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143307139 - 2⁵ = 143307107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 143307139.

It is not an unprimeable number, because it can be changed into a prime (143307119) 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, 3771222 + ... + 3771259.

It is an arithmetic number, because the mean of its divisors is an integer number (37712410).

Almost surely, 2^143307139 is an apocalyptic number.

143307139 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

143307139 is a deficient number, since it is larger than the sum of its proper divisors (7542501).

143307139 is an equidigital number, since it uses as much as digits as its factorization.

143307139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542500.

The product of its (nonzero) digits is 6804, while the sum is 31.

The square root of 143307139 is about 11971.0959815716. The cubic root of 143307139 is about 523.3062744021.

The spelling of 143307139 in words is "one hundred forty-three million, three hundred seven thousand, one hundred thirty-nine".