65132531 has 2 divisors, whose sum is σ = 65132532. Its totient is φ = 65132530.

The previous prime is 65132503. The next prime is 65132533. The reversal of 65132531 is 13523156.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65132531 - 2⁶ = 65132467 is a prime.

It is a super-2 number, since 2×65132531² = 8484493188931922, which contains 22 as substring.

Together with 65132533, it forms a pair of twin primes.

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 65132531.

It is not a weakly prime, because it can be changed into another prime (65132533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32566265 + 32566266.

It is an arithmetic number, because the mean of its divisors is an integer number (32566266).

Almost surely, 2^65132531 is an apocalyptic number.

65132531 is a deficient number, since it is larger than the sum of its proper divisors (1).

65132531 is an equidigital number, since it uses as much as digits as its factorization.

65132531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 26.

The square root of 65132531 is about 8070.4727866464. The cubic root of 65132531 is about 402.3456574238.

Adding to 65132531 its reverse (13523156), we get a palindrome (78655687).

The spelling of 65132531 in words is "sixty-five million, one hundred thirty-two thousand, five hundred thirty-one".