1075781983 has 4 divisors (see below), whose sum is σ = 1075873968. Its totient is φ = 1075690000.

The previous prime is 1075781977. The next prime is 1075782011. The reversal of 1075781983 is 3891875701.

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 1075781983 - 2¹³ = 1075773791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1075788983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25366 + ... + 52867.

It is an arithmetic number, because the mean of its divisors is an integer number (268968492).

Almost surely, 2^1075781983 is an apocalyptic number.

1075781983 is a deficient number, since it is larger than the sum of its proper divisors (91985).

1075781983 is an equidigital number, since it uses as much as digits as its factorization.

1075781983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91984.

The product of its (nonzero) digits is 423360, while the sum is 49.

The square root of 1075781983 is about 32799.1155825885. The cubic root of 1075781983 is about 1024.6481387552.

It can be divided in two parts, 107578 and 1983, that added together give a square (109561 = 331²).

The spelling of 1075781983 in words is "one billion, seventy-five million, seven hundred eighty-one thousand, nine hundred eighty-three".