1081583775 has 36 divisors (see below), whose sum is σ = 2051199072. Its totient is φ = 542910720.

The previous prime is 1081583753. The next prime is 1081583779. The reversal of 1081583775 is 5773851801.

1081583775 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1081583775 - 2⁵ = 1081583743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1081583775.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1081583779) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 137559 + ... + 145208.

It is an arithmetic number, because the mean of its divisors is an integer number (56977752).

Almost surely, 2^1081583775 is an apocalyptic number.

1081583775 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1081583775 is a deficient number, since it is larger than the sum of its proper divisors (969615297).

1081583775 is a wasteful number, since it uses less digits than its factorization.

1081583775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282800 (or 282792 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 45.

The square root of 1081583775 is about 32887.4409919653. The cubic root of 1081583775 is about 1026.4868447474.

The spelling of 1081583775 in words is "one billion, eighty-one million, five hundred eighty-three thousand, seven hundred seventy-five".