143139139 has 8 divisors (see below), whose sum is σ = 168163632. Its totient is φ = 120116640.

The previous prime is 143139137. The next prime is 143139149. The reversal of 143139139 is 931931341.

It is a happy number.

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 143139139 - 2¹ = 143139137 is a prime.

It is a super-2 number, since 2×143139139² = 40977626227322642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (143139137) 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, 500344 + ... + 500629.

It is an arithmetic number, because the mean of its divisors is an integer number (21020454).

Almost surely, 2^143139139 is an apocalyptic number.

143139139 is a deficient number, since it is larger than the sum of its proper divisors (25024493).

143139139 is a wasteful number, since it uses less digits than its factorization.

143139139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000997.

The product of its digits is 8748, while the sum is 34.

The square root of 143139139 is about 11964.0770224869. The cubic root of 143139139 is about 523.1017025253.

The spelling of 143139139 in words is "one hundred forty-three million, one hundred thirty-nine thousand, one hundred thirty-nine".