32147143 has 6 divisors (see below), whose sum is σ = 36756744. Its totient is φ = 27541836.

The previous prime is 32147131. The next prime is 32147149. The reversal of 32147143 is 34174123.

It is not a de Polignac number, because 32147143 - 2⁵ = 32147111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32147149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13930 + ... + 16072.

It is an arithmetic number, because the mean of its divisors is an integer number (6126124).

Almost surely, 2^32147143 is an apocalyptic number.

32147143 is a deficient number, since it is larger than the sum of its proper divisors (4609601).

32147143 is an frugal number, since it uses more digits than its factorization.

32147143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293 (or 2150 counting only the distinct ones).

The product of its digits is 2016, while the sum is 25.

The square root of 32147143 is about 5669.8450596114. The cubic root of 32147143 is about 317.9660809253.

The spelling of 32147143 in words is "thirty-two million, one hundred forty-seven thousand, one hundred forty-three".