1040271457 has 4 divisors (see below), whose sum is σ = 1040449536. Its totient is φ = 1040093380.

The previous prime is 1040271431. The next prime is 1040271467. The reversal of 1040271457 is 7541720401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040271457 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1040271467) 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 3 ways as a sum of consecutive naturals, for example, 79969 + ... + 92062.

It is an arithmetic number, because the mean of its divisors is an integer number (260112384).

Almost surely, 2^1040271457 is an apocalyptic number.

It is an amenable number.

1040271457 is a deficient number, since it is larger than the sum of its proper divisors (178079).

1040271457 is an equidigital number, since it uses as much as digits as its factorization.

1040271457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178078.

The product of its (nonzero) digits is 7840, while the sum is 31.

The square root of 1040271457 is about 32253.2394807095. The cubic root of 1040271457 is about 1013.2475465403.

Adding to 1040271457 its reverse (7541720401), we get a palindrome (8581991858).

The spelling of 1040271457 in words is "one billion, forty million, two hundred seventy-one thousand, four hundred fifty-seven".