16140403 has 2 divisors, whose sum is σ = 16140404. Its totient is φ = 16140402.

The previous prime is 16140391. The next prime is 16140413. The reversal of 16140403 is 30404161.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16140403 - 2¹³ = 16132211 is a prime.

It is not a weakly prime, because it can be changed into another prime (16140413) 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 as a sum of consecutive naturals, namely, 8070201 + 8070202.

It is an arithmetic number, because the mean of its divisors is an integer number (8070202).

Almost surely, 2^16140403 is an apocalyptic number.

16140403 is a deficient number, since it is larger than the sum of its proper divisors (1).

16140403 is an equidigital number, since it uses as much as digits as its factorization.

16140403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 16140403 is about 4017.5120410523. The cubic root of 16140403 is about 252.7191340171.

Adding to 16140403 its reverse (30404161), we get a palindrome (46544564).

The spelling of 16140403 in words is "sixteen million, one hundred forty thousand, four hundred three".