260909153 has 2 divisors, whose sum is σ = 260909154. Its totient is φ = 260909152.

The previous prime is 260909141. The next prime is 260909161. The reversal of 260909153 is 351909062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 247999504 + 12909649 = 15748^2 + 3593^2 .

It is a cyclic number.

It is not a de Polignac number, because 260909153 - 2⁸ = 260908897 is a prime.

It is a super-2 number, since 2×260909153² = 136147172238354818, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (260905153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130454576 + 130454577.

It is an arithmetic number, because the mean of its divisors is an integer number (130454577).

Almost surely, 2^260909153 is an apocalyptic number.

It is an amenable number.

260909153 is a deficient number, since it is larger than the sum of its proper divisors (1).

260909153 is an equidigital number, since it uses as much as digits as its factorization.

260909153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 260909153 is about 16152.6825326322. The cubic root of 260909153 is about 638.9934968803.

Subtracting 260909153 from its reverse (351909062), we obtain a palindrome (90999909).

The spelling of 260909153 in words is "two hundred sixty million, nine hundred nine thousand, one hundred fifty-three".