260136845 has 6 divisors (see below), whose sum is σ = 312207498. Its totient is φ = 208080624.

The previous prime is 260136823. The next prime is 260136853. The reversal of 260136845 is 548631062.

It can be written as a sum of positive squares in 3 ways, for example, as 102860164 + 157276681 = 10142^2 + 12541^2 .

It is not a de Polignac number, because 260136845 - 2⁶ = 260136781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 32459 + ... + 39671.

It is an arithmetic number, because the mean of its divisors is an integer number (52034583).

Almost surely, 2^260136845 is an apocalyptic number.

It is an amenable number.

260136845 is a deficient number, since it is larger than the sum of its proper divisors (52070653).

260136845 is an frugal number, since it uses more digits than its factorization.

260136845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14431 (or 7218 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 260136845 is about 16128.7583217060. The cubic root of 260136845 is about 638.3623863747.

The spelling of 260136845 in words is "two hundred sixty million, one hundred thirty-six thousand, eight hundred forty-five".