260315381 has 2 divisors, whose sum is σ = 260315382. Its totient is φ = 260315380.

The previous prime is 260315359. The next prime is 260315389. The reversal of 260315381 is 183513062.

260315381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 242082481 + 18232900 = 15559^2 + 4270^2 .

It is a cyclic number.

It is not a de Polignac number, because 260315381 - 2⁶ = 260315317 is a prime.

It is a super-2 number, since 2×260315381² = 135528195170350322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (260315389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130157690 + 130157691.

It is an arithmetic number, because the mean of its divisors is an integer number (130157691).

Almost surely, 2^260315381 is an apocalyptic number.

It is an amenable number.

260315381 is a deficient number, since it is larger than the sum of its proper divisors (1).

260315381 is an equidigital number, since it uses as much as digits as its factorization.

260315381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 260315381 is about 16134.2920823939. The cubic root of 260315381 is about 638.5083923530.

The spelling of 260315381 in words is "two hundred sixty million, three hundred fifteen thousand, three hundred eighty-one".