260187401 has 2 divisors, whose sum is σ = 260187402. Its totient is φ = 260187400.

The previous prime is 260187379. The next prime is 260187407. The reversal of 260187401 is 104781062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246490000 + 13697401 = 15700^2 + 3701^2 .

It is a cyclic number.

It is not a de Polignac number, because 260187401 - 2⁶ = 260187337 is a prime.

It is not a weakly prime, because it can be changed into another prime (260187407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130093700 + 130093701.

It is an arithmetic number, because the mean of its divisors is an integer number (130093701).

Almost surely, 2^260187401 is an apocalyptic number.

It is an amenable number.

260187401 is a deficient number, since it is larger than the sum of its proper divisors (1).

260187401 is an equidigital number, since it uses as much as digits as its factorization.

260187401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 260187401 is about 16130.3255081849. The cubic root of 260187401 is about 638.4037376339.

The spelling of 260187401 in words is "two hundred sixty million, one hundred eighty-seven thousand, four hundred one".