32140221531 has 16 divisors (see below), whose sum is σ = 46783331328. Its totient is φ = 19464789600.

The previous prime is 32140221517. The next prime is 32140221557. The reversal of 32140221531 is 13512204123.

It is not a de Polignac number, because 32140221531 - 2⁹ = 32140221019 is a prime.

It is a super-2 number, since 2×32140221531² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32140221431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307051 + ... + 398196.

It is an arithmetic number, because the mean of its divisors is an integer number (2923958208).

Almost surely, 2^32140221531 is an apocalyptic number.

32140221531 is a deficient number, since it is larger than the sum of its proper divisors (14643109797).

32140221531 is a wasteful number, since it uses less digits than its factorization.

32140221531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706642.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 32140221531 its reverse (13512204123), we get a palindrome (45652425654).

The spelling of 32140221531 in words is "thirty-two billion, one hundred forty million, two hundred twenty-one thousand, five hundred thirty-one".