16312019 has 2 divisors, whose sum is σ = 16312020. Its totient is φ = 16312018.

The previous prime is 16312003. The next prime is 16312033. The reversal of 16312019 is 91021361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16312019 - 2⁴ = 16312003 is a prime.

It is a super-2 number, since 2×16312019² = 532163927712722, which contains 22 as substring.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 16311985 and 16312003.

It is not a weakly prime, because it can be changed into another prime (16312039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8156009 + 8156010.

It is an arithmetic number, because the mean of its divisors is an integer number (8156010).

Almost surely, 2^16312019 is an apocalyptic number.

16312019 is a deficient number, since it is larger than the sum of its proper divisors (1).

16312019 is an equidigital number, since it uses as much as digits as its factorization.

16312019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 16312019 is about 4038.8140586068. The cubic root of 16312019 is about 253.6116733358.

The spelling of 16312019 in words is "sixteen million, three hundred twelve thousand, nineteen".