328132531 has 2 divisors, whose sum is σ = 328132532. Its totient is φ = 328132530.

The previous prime is 328132501. The next prime is 328132561. The reversal of 328132531 is 135231823.

It is a balanced prime because it is at equal distance from previous prime (328132501) and next prime (328132561).

It is a cyclic number.

It is not a de Polignac number, because 328132531 - 2⁷ = 328132403 is a prime.

It is a super-2 number, since 2×328132531² = 215341915800931922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 328132531.

It is not a weakly prime, because it can be changed into another prime (328132501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164066265 + 164066266.

It is an arithmetic number, because the mean of its divisors is an integer number (164066266).

Almost surely, 2^328132531 is an apocalyptic number.

328132531 is a deficient number, since it is larger than the sum of its proper divisors (1).

328132531 is an equidigital number, since it uses as much as digits as its factorization.

328132531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 328132531 is about 18114.4288068931. The cubic root of 328132531 is about 689.7363208696.

It can be divided in two parts, 32813 and 2531, that added together give a square (35344 = 188²).

The spelling of 328132531 in words is "three hundred twenty-eight million, one hundred thirty-two thousand, five hundred thirty-one".