32200145 has 4 divisors (see below), whose sum is σ = 38640180. Its totient is φ = 25760112.

The previous prime is 32200093. The next prime is 32200153. The reversal of 32200145 is 54100223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54100223 = 359 ⋅150697.

It can be written as a sum of positive squares in 2 ways, for example, as 10679824 + 21520321 = 3268^2 + 4639^2 .

It is a cyclic number.

It is not a de Polignac number, because 32200145 - 2¹⁰ = 32199121 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220010 + ... + 3220019.

It is an arithmetic number, because the mean of its divisors is an integer number (9660045).

Almost surely, 2^32200145 is an apocalyptic number.

It is an amenable number.

32200145 is a deficient number, since it is larger than the sum of its proper divisors (6440035).

32200145 is an equidigital number, since it uses as much as digits as its factorization.

32200145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440034.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 32200145 is about 5674.5171600763. The cubic root of 32200145 is about 318.1407318500.

Adding to 32200145 its reverse (54100223), we get a palindrome (86300368).

The spelling of 32200145 in words is "thirty-two million, two hundred thousand, one hundred forty-five".