32021142145 has 8 divisors (see below), whose sum is σ = 38434049640. Its totient is φ = 25611127680.

The previous prime is 32021142143. The next prime is 32021142173. The reversal of 32021142145 is 54124112023.

It can be written as a sum of positive squares in 4 ways, for example, as 3779667441 + 28241474704 = 61479^2 + 168052^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32021142145 - 2¹ = 32021142143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32021142143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 698830 + ... + 743239.

It is an arithmetic number, because the mean of its divisors is an integer number (4804256205).

Almost surely, 2^32021142145 is an apocalyptic number.

It is an amenable number.

32021142145 is a deficient number, since it is larger than the sum of its proper divisors (6412907495).

32021142145 is a wasteful number, since it uses less digits than its factorization.

32021142145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446515.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 32021142145 its reverse (54124112023), we get a palindrome (86145254168).

The spelling of 32021142145 in words is "thirty-two billion, twenty-one million, one hundred forty-two thousand, one hundred forty-five".