20146319 has 2 divisors, whose sum is σ = 20146320. Its totient is φ = 20146318.

The previous prime is 20146279. The next prime is 20146331. The reversal of 20146319 is 91364102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20146319 - 2¹⁶ = 20080783 is a prime.

It is a super-2 number, since 2×20146319² = 811748338499522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20146339) 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, 10073159 + 10073160.

It is an arithmetic number, because the mean of its divisors is an integer number (10073160).

Almost surely, 2^20146319 is an apocalyptic number.

20146319 is a deficient number, since it is larger than the sum of its proper divisors (1).

20146319 is an equidigital number, since it uses as much as digits as its factorization.

20146319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 20146319 is about 4488.4651051334. The cubic root of 20146319 is about 272.1021053729.

The spelling of 20146319 in words is "twenty million, one hundred forty-six thousand, three hundred nineteen".