1041257257 has 4 divisors (see below), whose sum is σ = 1041906816. Its totient is φ = 1040607700.

The previous prime is 1041257249. The next prime is 1041257263. The reversal of 1041257257 is 7527521401.

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 not a de Polignac number, because 1041257257 - 2³ = 1041257249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1041257207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322369 + ... + 325582.

It is an arithmetic number, because the mean of its divisors is an integer number (260476704).

Almost surely, 2^1041257257 is an apocalyptic number.

It is an amenable number.

1041257257 is a deficient number, since it is larger than the sum of its proper divisors (649559).

1041257257 is an equidigital number, since it uses as much as digits as its factorization.

1041257257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649558.

The product of its (nonzero) digits is 19600, while the sum is 34.

The square root of 1041257257 is about 32268.5180477815. The cubic root of 1041257257 is about 1013.5675092038.

Adding to 1041257257 its reverse (7527521401), we get a palindrome (8568778658).

The spelling of 1041257257 in words is "one billion, forty-one million, two hundred fifty-seven thousand, two hundred fifty-seven".