32147139 has 8 divisors (see below), whose sum is σ = 42966352. Its totient is φ = 21379680.

The previous prime is 32147131. The next prime is 32147149. The reversal of 32147139 is 93174123.

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

It is not a de Polignac number, because 32147139 - 2³ = 32147131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32147131) 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 7 ways as a sum of consecutive naturals, for example, 11464 + ... + 13989.

It is an arithmetic number, because the mean of its divisors is an integer number (5370794).

Almost surely, 2^32147139 is an apocalyptic number.

32147139 is a deficient number, since it is larger than the sum of its proper divisors (10819213).

32147139 is a wasteful number, since it uses less digits than its factorization.

32147139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25877.

The product of its digits is 4536, while the sum is 30.

The square root of 32147139 is about 5669.8447068681. The cubic root of 32147139 is about 317.9660677373.

The spelling of 32147139 in words is "thirty-two million, one hundred forty-seven thousand, one hundred thirty-nine".