1081254911 has 24 divisors (see below), whose sum is σ = 1236025392. Its totient is φ = 944380800.

The previous prime is 1081254871. The next prime is 1081254917. The reversal of 1081254911 is 1194521801.

It is not a de Polignac number, because 1081254911 - 2⁶ = 1081254847 is a prime.

It is a super-2 number, since 2×1081254911² = 2338224365123235842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081254917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 330761 + ... + 334013.

It is an arithmetic number, because the mean of its divisors is an integer number (51501058).

Almost surely, 2^1081254911 is an apocalyptic number.

1081254911 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1081254911 is a deficient number, since it is larger than the sum of its proper divisors (154770481).

1081254911 is a wasteful number, since it uses less digits than its factorization.

1081254911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3383 (or 3372 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1081254911 is about 32882.4407701132. The cubic root of 1081254911 is about 1026.3827970852.

The spelling of 1081254911 in words is "one billion, eighty-one million, two hundred fifty-four thousand, nine hundred eleven".