143139065 has 32 divisors (see below), whose sum is σ = 192741120. Its totient is φ = 101412864.

The previous prime is 143139011. The next prime is 143139079. The reversal of 143139065 is 560931341.

It is a cyclic number.

It is not a de Polignac number, because 143139065 - 2²² = 138944761 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 424577 + ... + 424913.

It is an arithmetic number, because the mean of its divisors is an integer number (6023160).

Almost surely, 2^143139065 is an apocalyptic number.

It is an amenable number.

143139065 is a deficient number, since it is larger than the sum of its proper divisors (49602055).

143139065 is a wasteful number, since it uses less digits than its factorization.

143139065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 143139065 is about 11964.0739298953. The cubic root of 143139065 is about 523.1016123810.

The spelling of 143139065 in words is "one hundred forty-three million, one hundred thirty-nine thousand, sixty-five".