143412139 has 4 divisors (see below), whose sum is σ = 154443856. Its totient is φ = 132380424.

The previous prime is 143412109. The next prime is 143412149. The reversal of 143412139 is 931214341.

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 143412139 - 2¹⁷ = 143281067 is a prime.

It is a super-2 number, since 2×143412139² = 41134083225110642, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143412109) 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, 5515839 + ... + 5515864.

It is an arithmetic number, because the mean of its divisors is an integer number (38610964).

Almost surely, 2^143412139 is an apocalyptic number.

143412139 is a deficient number, since it is larger than the sum of its proper divisors (11031717).

143412139 is a wasteful number, since it uses less digits than its factorization.

143412139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031716.

The product of its digits is 2592, while the sum is 28.

The square root of 143412139 is about 11975.4807419160. The cubic root of 143412139 is about 523.4340506475.

The spelling of 143412139 in words is "one hundred forty-three million, four hundred twelve thousand, one hundred thirty-nine".