146999819 has 2 divisors, whose sum is σ = 146999820. Its totient is φ = 146999818.

The previous prime is 146999777. The next prime is 146999821. The reversal of 146999819 is 918999641.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146999819 is a prime.

It is a super-2 number, since 2×146999819² = 43217893572065522, which contains 22 as substring.

Together with 146999821, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146992819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73499909 + 73499910.

It is an arithmetic number, because the mean of its divisors is an integer number (73499910).

Almost surely, 2^146999819 is an apocalyptic number.

146999819 is a deficient number, since it is larger than the sum of its proper divisors (1).

146999819 is an equidigital number, since it uses as much as digits as its factorization.

146999819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 56.

The square root of 146999819 is about 12124.3481886656. The cubic root of 146999819 is about 527.7629921800.

The spelling of 146999819 in words is "one hundred forty-six million, nine hundred ninety-nine thousand, eight hundred nineteen".