20147132 has 6 divisors (see below), whose sum is σ = 35257488. Its totient is φ = 10073564.

The previous prime is 20147131. The next prime is 20147147. The reversal of 20147132 is 23174102.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20147131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2518388 + ... + 2518395.

It is an arithmetic number, because the mean of its divisors is an integer number (5876248).

Almost surely, 2^20147132 is an apocalyptic number.

It is an amenable number.

20147132 is a deficient number, since it is larger than the sum of its proper divisors (15110356).

20147132 is a wasteful number, since it uses less digits than its factorization.

20147132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036787 (or 5036785 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20147132 is about 4488.5556697004. Note that the first 3 decimals coincide. The cubic root of 20147132 is about 272.1057655293.

The spelling of 20147132 in words is "twenty million, one hundred forty-seven thousand, one hundred thirty-two".