10303257 has 4 divisors (see below), whose sum is σ = 13737680. Its totient is φ = 6868836.

The previous prime is 10303247. The next prime is 10303261. The reversal of 10303257 is 75230301.

It is a happy number.

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 not a de Polignac number, because 10303257 - 2¹⁸ = 10041113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10303217) 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, 1717207 + ... + 1717212.

It is an arithmetic number, because the mean of its divisors is an integer number (3434420).

Almost surely, 2^10303257 is an apocalyptic number.

It is an amenable number.

10303257 is a deficient number, since it is larger than the sum of its proper divisors (3434423).

10303257 is an equidigital number, since it uses as much as digits as its factorization.

10303257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3434422.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 10303257 is about 3209.8686889030. The cubic root of 10303257 is about 217.5996425460.

Adding to 10303257 its reverse (75230301), we get a palindrome (85533558).

The spelling of 10303257 in words is "ten million, three hundred three thousand, two hundred fifty-seven".