260138601 has 16 divisors (see below), whose sum is σ = 395808000. Its totient is φ = 168737904.

The previous prime is 260138597. The next prime is 260138603. The reversal of 260138601 is 106831062.

260138601 is a `hidden beast` number, since 26 + 0 + 1 + 38 + 601 = 666.

260138601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 260138601 - 2² = 260138597 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (260138603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129201 + ... + 131198.

It is an arithmetic number, because the mean of its divisors is an integer number (24738000).

Almost surely, 2^260138601 is an apocalyptic number.

It is an amenable number.

260138601 is a deficient number, since it is larger than the sum of its proper divisors (135669399).

260138601 is a wasteful number, since it uses less digits than its factorization.

260138601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260445 (or 260439 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 260138601 is about 16128.8127585387. The cubic root of 260138601 is about 638.3638227492.

Adding to 260138601 its reverse (106831062), we get a palindrome (366969663).

The spelling of 260138601 in words is "two hundred sixty million, one hundred thirty-eight thousand, six hundred one".