39143138 has 8 divisors (see below), whose sum is σ = 58820688. Its totient is φ = 19536244.

The previous prime is 39143131. The next prime is 39143149. The reversal of 39143138 is 83134193.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (39143131) 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, 16256 + ... + 18507.

It is an arithmetic number, because the mean of its divisors is an integer number (7352586).

Almost surely, 2^39143138 is an apocalyptic number.

39143138 is a deficient number, since it is larger than the sum of its proper divisors (19677550).

39143138 is a wasteful number, since it uses less digits than its factorization.

39143138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35328.

The product of its digits is 7776, while the sum is 32.

The square root of 39143138 is about 6256.4477141586. The cubic root of 39143138 is about 339.5355191549.

The spelling of 39143138 in words is "thirty-nine million, one hundred forty-three thousand, one hundred thirty-eight".