261300853 has 16 divisors (see below), whose sum is σ = 289396800. Its totient is φ = 233958400.

The previous prime is 261300847. The next prime is 261300857. The reversal of 261300853 is 358003162.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261300853 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (261300857) 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, 214101 + ... + 215317.

It is an arithmetic number, because the mean of its divisors is an integer number (18087300).

Almost surely, 2^261300853 is an apocalyptic number.

It is an amenable number.

261300853 is a deficient number, since it is larger than the sum of its proper divisors (28095947).

261300853 is a wasteful number, since it uses less digits than its factorization.

261300853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1508.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 261300853 is about 16164.8029063147. The cubic root of 261300853 is about 639.3131082594.

The spelling of 261300853 in words is "two hundred sixty-one million, three hundred thousand, eight hundred fifty-three".