16249403 has 2 divisors, whose sum is σ = 16249404. Its totient is φ = 16249402.

The previous prime is 16249397. The next prime is 16249411. The reversal of 16249403 is 30494261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16249403 - 2⁸ = 16249147 is a prime.

It is not a weakly prime, because it can be changed into another prime (16249423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8124701 + 8124702.

It is an arithmetic number, because the mean of its divisors is an integer number (8124702).

Almost surely, 2^16249403 is an apocalyptic number.

16249403 is a deficient number, since it is larger than the sum of its proper divisors (1).

16249403 is an equidigital number, since it uses as much as digits as its factorization.

16249403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 16249403 is about 4031.0548247326. The cubic root of 16249403 is about 253.2867490906.

The spelling of 16249403 in words is "sixteen million, two hundred forty-nine thousand, four hundred three".