260391199 has 4 divisors (see below), whose sum is σ = 260438464. Its totient is φ = 260343936.

The previous prime is 260391137. The next prime is 260391221. The reversal of 260391199 is 991193062.

260391199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 991193062 = 2 ⋅495596531.

It is a cyclic number.

It is not a de Polignac number, because 260391199 - 2¹³ = 260383007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260395199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14082 + ... + 26815.

It is an arithmetic number, because the mean of its divisors is an integer number (65109616).

Almost surely, 2^260391199 is an apocalyptic number.

260391199 is a deficient number, since it is larger than the sum of its proper divisors (47265).

260391199 is an equidigital number, since it uses as much as digits as its factorization.

260391199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47264.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 260391199 is about 16136.6415031133. The cubic root of 260391199 is about 638.5703757952.

The spelling of 260391199 in words is "two hundred sixty million, three hundred ninety-one thousand, one hundred ninety-nine".