1040081047 has 4 divisors (see below), whose sum is σ = 1040178256. Its totient is φ = 1039983840.

The previous prime is 1040081039. The next prime is 1040081101. The reversal of 1040081047 is 7401800401.

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, and also an emirpimes, since its reverse is a distinct semiprime: 7401800401 = 42979 ⋅172219.

It is a cyclic number.

It is not a de Polignac number, because 1040081047 - 2³ = 1040081039 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 (1040081447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30243 + ... + 54724.

It is an arithmetic number, because the mean of its divisors is an integer number (260044564).

Almost surely, 2^1040081047 is an apocalyptic number.

1040081047 is a deficient number, since it is larger than the sum of its proper divisors (97209).

1040081047 is an equidigital number, since it uses as much as digits as its factorization.

1040081047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97208.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 1040081047 is about 32250.2875491057. The cubic root of 1040081047 is about 1013.1857215757.

Adding to 1040081047 its reverse (7401800401), we get a palindrome (8441881448).

The spelling of 1040081047 in words is "one billion, forty million, eighty-one thousand, forty-seven".