32009145 has 16 divisors (see below), whose sum is σ = 58531200. Its totient is φ = 14632704.

The previous prime is 32009111. The next prime is 32009149. The reversal of 32009145 is 54190023.

It is not a de Polignac number, because 32009145 - 2⁷ = 32009017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32009149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152320 + ... + 152529.

It is an arithmetic number, because the mean of its divisors is an integer number (3658200).

Almost surely, 2^32009145 is an apocalyptic number.

32009145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32009145 is a deficient number, since it is larger than the sum of its proper divisors (26522055).

32009145 is a wasteful number, since it uses less digits than its factorization.

32009145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304864.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 32009145 is about 5657.6625031898. The cubic root of 32009145 is about 317.5104508102.

Adding to 32009145 its reverse (54190023), we get a palindrome (86199168).

The spelling of 32009145 in words is "thirty-two million, nine thousand, one hundred forty-five".