1082771251 has 4 divisors (see below), whose sum is σ = 1082881872. Its totient is φ = 1082660632.

The previous prime is 1082771243. The next prime is 1082771267. The reversal of 1082771251 is 1521772801.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1082771251 - 2³ = 1082771243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1082771201) 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 3 ways as a sum of consecutive naturals, for example, 39031 + ... + 60736.

It is an arithmetic number, because the mean of its divisors is an integer number (270720468).

Almost surely, 2^1082771251 is an apocalyptic number.

1082771251 is a deficient number, since it is larger than the sum of its proper divisors (110621).

1082771251 is an equidigital number, since it uses as much as digits as its factorization.

1082771251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110620.

The product of its (nonzero) digits is 7840, while the sum is 34.

The square root of 1082771251 is about 32905.4896787755. The cubic root of 1082771251 is about 1026.8623689565.

The spelling of 1082771251 in words is "one billion, eighty-two million, seven hundred seventy-one thousand, two hundred fifty-one".