65130431 has 2 divisors, whose sum is σ = 65130432. Its totient is φ = 65130430.

The previous prime is 65130419. The next prime is 65130463. The reversal of 65130431 is 13403156.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65130431 is a prime.

It is a super-2 number, since 2×65130431² = 8483946084491522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 65130397 and 65130406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65130931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32565215 + 32565216.

It is an arithmetic number, because the mean of its divisors is an integer number (32565216).

Almost surely, 2^65130431 is an apocalyptic number.

65130431 is a deficient number, since it is larger than the sum of its proper divisors (1).

65130431 is an equidigital number, since it uses as much as digits as its factorization.

65130431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 65130431 is about 8070.3426816957. The cubic root of 65130431 is about 402.3413332408.

Adding to 65130431 its reverse (13403156), we get a palindrome (78533587).

The spelling of 65130431 in words is "sixty-five million, one hundred thirty thousand, four hundred thirty-one".