65745131 has 2 divisors, whose sum is σ = 65745132. Its totient is φ = 65745130.

The previous prime is 65745107. The next prime is 65745133. The reversal of 65745131 is 13154756.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65745131 is a prime.

It is a super-2 number, since 2×65745131² = 8644844500414322, which contains 22 as substring.

Together with 65745133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (65745133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32872565 + 32872566.

It is an arithmetic number, because the mean of its divisors is an integer number (32872566).

Almost surely, 2^65745131 is an apocalyptic number.

65745131 is a deficient number, since it is larger than the sum of its proper divisors (1).

65745131 is an equidigital number, since it uses as much as digits as its factorization.

65745131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 32.

The square root of 65745131 is about 8108.3371291529. The cubic root of 65745131 is about 403.6031356626.

Adding to 65745131 its reverse (13154756), we get a palindrome (78899887).

The spelling of 65745131 in words is "sixty-five million, seven hundred forty-five thousand, one hundred thirty-one".