10403251 has 2 divisors, whose sum is σ = 10403252. Its totient is φ = 10403250.

The previous prime is 10403249. The next prime is 10403311. The reversal of 10403251 is 15230401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10403251 - 2¹ = 10403249 is a prime.

Together with 10403249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10403231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5201625 + 5201626.

It is an arithmetic number, because the mean of its divisors is an integer number (5201626).

Almost surely, 2^10403251 is an apocalyptic number.

10403251 is a deficient number, since it is larger than the sum of its proper divisors (1).

10403251 is an equidigital number, since it uses as much as digits as its factorization.

10403251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 10403251 is about 3225.4071060875. The cubic root of 10403251 is about 218.3013185905.

Adding to 10403251 its reverse (15230401), we get a palindrome (25633652).

The spelling of 10403251 in words is "ten million, four hundred three thousand, two hundred fifty-one".