260016431 has 2 divisors, whose sum is σ = 260016432. Its totient is φ = 260016430.

The previous prime is 260016373. The next prime is 260016443. The reversal of 260016431 is 134610062.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-260016431 is a prime.

It is a super-2 number, since 2×260016431² = 135217088779955522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 260016397 and 260016406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260010431) 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, 130008215 + 130008216.

It is an arithmetic number, because the mean of its divisors is an integer number (130008216).

Almost surely, 2^260016431 is an apocalyptic number.

260016431 is a deficient number, since it is larger than the sum of its proper divisors (1).

260016431 is an equidigital number, since it uses as much as digits as its factorization.

260016431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 260016431 is about 16125.0249922287. The cubic root of 260016431 is about 638.2638745936.

Adding to 260016431 its reverse (134610062), we get a palindrome (394626493).

The spelling of 260016431 in words is "two hundred sixty million, sixteen thousand, four hundred thirty-one".