260401135 has 8 divisors (see below), whose sum is σ = 312628896. Its totient is φ = 208222560.

The previous prime is 260401133. The next prime is 260401259. The reversal of 260401135 is 531104062.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 260401135 - 2¹ = 260401133 is a prime.

It is a super-2 number, since 2×260401135² = 135617502218576450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (260401133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582 + ... + 22828.

It is an arithmetic number, because the mean of its divisors is an integer number (39078612).

Almost surely, 2^260401135 is an apocalyptic number.

260401135 is a deficient number, since it is larger than the sum of its proper divisors (52227761).

260401135 is a wasteful number, since it uses less digits than its factorization.

260401135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24593.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 260401135 is about 16136.9493709313. The cubic root of 260401135 is about 638.5784978754.

Adding to 260401135 its reverse (531104062), we get a palindrome (791505197).

The spelling of 260401135 in words is "two hundred sixty million, four hundred one thousand, one hundred thirty-five".