1080681257 has 8 divisors (see below), whose sum is σ = 1097652192. Its totient is φ = 1063735200.

The previous prime is 1080681233. The next prime is 1080681323. The reversal of 1080681257 is 7521860801.

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

It is a cyclic number.

It is not a de Polignac number, because 1080681257 - 2¹⁸ = 1080419113 is a prime.

It is a super-3 number, since 3×1080681257³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1080681257.

It is not an unprimeable number, because it can be changed into a prime (1080689257) 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, 93782 + ... + 104672.

It is an arithmetic number, because the mean of its divisors is an integer number (137206524).

Almost surely, 2^1080681257 is an apocalyptic number.

It is an amenable number.

1080681257 is a deficient number, since it is larger than the sum of its proper divisors (16970935).

1080681257 is a wasteful number, since it uses less digits than its factorization.

1080681257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12439.

The product of its (nonzero) digits is 26880, while the sum is 38.

The square root of 1080681257 is about 32873.7168114590. The cubic root of 1080681257 is about 1026.2012510107.

The spelling of 1080681257 in words is "one billion, eighty million, six hundred eighty-one thousand, two hundred fifty-seven".