143139145 has 8 divisors (see below), whose sum is σ = 173697480. Its totient is φ = 113224320.

The previous prime is 143139137. The next prime is 143139149. The reversal of 143139145 is 541931341.

It can be written as a sum of positive squares in 4 ways, for example, as 1849 + 143137296 = 43^2 + 11964^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143139145 - 2³ = 143139137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143139149) 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, 160386 + ... + 161275.

It is an arithmetic number, because the mean of its divisors is an integer number (21712185).

Almost surely, 2^143139145 is an apocalyptic number.

It is an amenable number.

143139145 is a deficient number, since it is larger than the sum of its proper divisors (30558335).

143139145 is an equidigital number, since it uses as much as digits as its factorization.

143139145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321755.

The product of its digits is 6480, while the sum is 31.

The square root of 143139145 is about 11964.0772732376. The cubic root of 143139145 is about 523.1017098343.

The spelling of 143139145 in words is "one hundred forty-three million, one hundred thirty-nine thousand, one hundred forty-five".