32147072 has 16 divisors (see below), whose sum is σ = 64043250. Its totient is φ = 16073472.

The previous prime is 32147041. The next prime is 32147099. The reversal of 32147072 is 27074123.

It can be written as a sum of positive squares in only one way, i.e., 21752896 + 10394176 = 4664^2 + 3224^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125447 + ... + 125702.

Almost surely, 2^32147072 is an apocalyptic number.

32147072 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

32147072 is a deficient number, since it is larger than the sum of its proper divisors (31896178).

32147072 is an equidigital number, since it uses as much as digits as its factorization.

32147072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251163 (or 251151 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 32147072 is about 5669.8387984139. The cubic root of 32147072 is about 317.9658468391.

The spelling of 32147072 in words is "thirty-two million, one hundred forty-seven thousand, seventy-two".