1075474981 has 6 divisors (see below), whose sum is σ = 1251062790. Its totient is φ = 921835656.

The previous prime is 1075474973. The next prime is 1075474991. The reversal of 1075474981 is 1894745701.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 652802500 + 422672481 = 25550^2 + 20559^2 .

It is not a de Polignac number, because 1075474981 - 2³ = 1075474973 is a prime.

It is a super-2 number, since 2×1075474981² = 2313292869513900722, 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 (1075474921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10974186 + ... + 10974283.

It is an arithmetic number, because the mean of its divisors is an integer number (208510465).

Almost surely, 2^1075474981 is an apocalyptic number.

It is an amenable number.

1075474981 is a deficient number, since it is larger than the sum of its proper divisors (175587809).

1075474981 is an equidigital number, since it uses as much as digits as its factorization.

1075474981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21948483 (or 21948476 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 46.

The square root of 1075474981 is about 32794.4352139201. The cubic root of 1075474981 is about 1024.5506596002.

The spelling of 1075474981 in words is "one billion, seventy-five million, four hundred seventy-four thousand, nine hundred eighty-one".