32193145 has 8 divisors (see below), whose sum is σ = 39676104. Its totient is φ = 25058304.

The previous prime is 32193143. The next prime is 32193157. The reversal of 32193145 is 54139123.

It can be written as a sum of positive squares in 4 ways, for example, as 18731584 + 13461561 = 4328^2 + 3669^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 32193145 - 2¹ = 32193143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32193143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86824 + ... + 87193.

It is an arithmetic number, because the mean of its divisors is an integer number (4959513).

Almost surely, 2^32193145 is an apocalyptic number.

It is an amenable number.

32193145 is a deficient number, since it is larger than the sum of its proper divisors (7482959).

32193145 is a wasteful number, since it uses less digits than its factorization.

32193145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174059.

The product of its digits is 3240, while the sum is 28.

The square root of 32193145 is about 5673.9003339854. The cubic root of 32193145 is about 318.1176766069.

The spelling of 32193145 in words is "thirty-two million, one hundred ninety-three thousand, one hundred forty-five".