103403257 has 2 divisors, whose sum is σ = 103403258. Its totient is φ = 103403256.

The previous prime is 103403233. The next prime is 103403281. The reversal of 103403257 is 752304301.

It is a balanced prime because it is at equal distance from previous prime (103403233) and next prime (103403281).

It can be written as a sum of positive squares in only one way, i.e., 90935296 + 12467961 = 9536^2 + 3531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103403257 is a prime.

It is not a weakly prime, because it can be changed into another prime (103403207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51701628 + 51701629.

It is an arithmetic number, because the mean of its divisors is an integer number (51701629).

Almost surely, 2^103403257 is an apocalyptic number.

It is an amenable number.

103403257 is a deficient number, since it is larger than the sum of its proper divisors (1).

103403257 is an equidigital number, since it uses as much as digits as its factorization.

103403257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 103403257 is about 10168.7392040508. The cubic root of 103403257 is about 469.3657613860.

Adding to 103403257 its reverse (752304301), we get a palindrome (855707558).

The spelling of 103403257 in words is "one hundred three million, four hundred three thousand, two hundred fifty-seven".