260649123 has 8 divisors (see below), whose sum is σ = 397179648. Its totient is φ = 148942344.

The previous prime is 260649119. The next prime is 260649131. The reversal of 260649123 is 321946062.

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

It is not a de Polignac number, because 260649123 - 2² = 260649119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (260649223) 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 in 7 ways as a sum of consecutive naturals, for example, 6205911 + ... + 6205952.

It is an arithmetic number, because the mean of its divisors is an integer number (49647456).

Almost surely, 2^260649123 is an apocalyptic number.

260649123 is a deficient number, since it is larger than the sum of its proper divisors (136530525).

260649123 is a wasteful number, since it uses less digits than its factorization.

260649123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12411873.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 260649123 is about 16144.6313987034. The cubic root of 260649123 is about 638.7811461995.

The spelling of 260649123 in words is "two hundred sixty million, six hundred forty-nine thousand, one hundred twenty-three".