16313503 has 2 divisors, whose sum is σ = 16313504. Its totient is φ = 16313502.

The previous prime is 16313497. The next prime is 16313519. The reversal of 16313503 is 30531361.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16313503 - 2⁹ = 16312991 is a prime.

It is a super-2 number, since 2×16313503² = 532260760262018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16313543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8156751 + 8156752.

It is an arithmetic number, because the mean of its divisors is an integer number (8156752).

Almost surely, 2^16313503 is an apocalyptic number.

16313503 is a deficient number, since it is larger than the sum of its proper divisors (1).

16313503 is an equidigital number, since it uses as much as digits as its factorization.

16313503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 16313503 is about 4038.9977717251. The cubic root of 16313503 is about 253.6193639495.

Adding to 16313503 its reverse (30531361), we get a palindrome (46844864).

The spelling of 16313503 in words is "sixteen million, three hundred thirteen thousand, five hundred three".