32145513 has 16 divisors (see below), whose sum is σ = 44880000. Its totient is φ = 20427264.

The previous prime is 32145497. The next prime is 32145523. The reversal of 32145513 is 31554123.

It is not a de Polignac number, because 32145513 - 2⁴ = 32145497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32145523) 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, 25113 + ... + 26361.

It is an arithmetic number, because the mean of its divisors is an integer number (2805000).

Almost surely, 2^32145513 is an apocalyptic number.

It is an amenable number.

32145513 is a deficient number, since it is larger than the sum of its proper divisors (12734487).

32145513 is a wasteful number, since it uses less digits than its factorization.

32145513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its digits is 1800, while the sum is 24.

The square root of 32145513 is about 5669.7013148842. The cubic root of 32145513 is about 317.9607067466.

Adding to 32145513 its reverse (31554123), we get a palindrome (63699636).

The spelling of 32145513 in words is "thirty-two million, one hundred forty-five thousand, five hundred thirteen".