32131345 has 16 divisors (see below), whose sum is σ = 41536512. Its totient is φ = 23791680.

The previous prime is 32131313. The next prime is 32131349. The reversal of 32131345 is 54313123.

It is not a de Polignac number, because 32131345 - 2⁵ = 32131313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32131349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942 + ... + 8071.

It is an arithmetic number, because the mean of its divisors is an integer number (2596032).

Almost surely, 2^32131345 is an apocalyptic number.

It is an amenable number.

32131345 is a deficient number, since it is larger than the sum of its proper divisors (9405167).

32131345 is a wasteful number, since it uses less digits than its factorization.

32131345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9072.

The product of its digits is 1080, while the sum is 22.

The square root of 32131345 is about 5668.4517286469. The cubic root of 32131345 is about 317.9139865995.

Adding to 32131345 its reverse (54313123), we get a palindrome (86444468).

The spelling of 32131345 in words is "thirty-two million, one hundred thirty-one thousand, three hundred forty-five".