143059139 has 4 divisors (see below), whose sum is σ = 143095920. Its totient is φ = 143022360.

The previous prime is 143059123. The next prime is 143059157. The reversal of 143059139 is 931950341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931950341 = 7 ⋅133135763.

It is a cyclic number.

It is not a de Polignac number, because 143059139 - 2⁴ = 143059123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143059099 and 143059108.

It is not an unprimeable number, because it can be changed into a prime (143059159) 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, 11759 + ... + 20600.

It is an arithmetic number, because the mean of its divisors is an integer number (35773980).

Almost surely, 2^143059139 is an apocalyptic number.

143059139 is a deficient number, since it is larger than the sum of its proper divisors (36781).

143059139 is an equidigital number, since it uses as much as digits as its factorization.

143059139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36780.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 143059139 is about 11960.7332133110. The cubic root of 143059139 is about 523.0042310833.

The spelling of 143059139 in words is "one hundred forty-three million, fifty-nine thousand, one hundred thirty-nine".