20591132 has 12 divisors (see below), whose sum is σ = 36076656. Its totient is φ = 10283520.

The previous prime is 20591119. The next prime is 20591147. The reversal of 20591132 is 23119502.

It is a junction number, because it is equal to n+sod(n) for n = 20591098 and 20591107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 6620.

It is an arithmetic number, because the mean of its divisors is an integer number (3006388).

Almost surely, 2^20591132 is an apocalyptic number.

It is an amenable number.

20591132 is a deficient number, since it is larger than the sum of its proper divisors (15485524).

20591132 is a wasteful number, since it uses less digits than its factorization.

20591132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6028 (or 6026 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 20591132 is about 4537.7452550799. The cubic root of 20591132 is about 274.0901367539.

The spelling of 20591132 in words is "twenty million, five hundred ninety-one thousand, one hundred thirty-two".