260867149 has 2 divisors, whose sum is σ = 260867150. Its totient is φ = 260867148.

The previous prime is 260867137. The next prime is 260867161. The reversal of 260867149 is 941768062.

It is a balanced prime because it is at equal distance from previous prime (260867137) and next prime (260867161).

It can be written as a sum of positive squares in only one way, i.e., 148401124 + 112466025 = 12182^2 + 10605^2 .

It is a cyclic number.

It is not a de Polignac number, because 260867149 - 2⁷ = 260867021 is a prime.

It is a super-3 number, since 3×260867149³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260867119) 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, 130433574 + 130433575.

It is an arithmetic number, because the mean of its divisors is an integer number (130433575).

Almost surely, 2^260867149 is an apocalyptic number.

It is an amenable number.

260867149 is a deficient number, since it is larger than the sum of its proper divisors (1).

260867149 is an equidigital number, since it uses as much as digits as its factorization.

260867149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 260867149 is about 16151.3822628282. The cubic root of 260867149 is about 638.9592043267.

The spelling of 260867149 in words is "two hundred sixty million, eight hundred sixty-seven thousand, one hundred forty-nine".