146199919 has 2 divisors, whose sum is σ = 146199920. Its totient is φ = 146199918.

The previous prime is 146199883. The next prime is 146199929. The reversal of 146199919 is 919991641.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146199919 - 2⁷ = 146199791 is a prime.

It is a super-2 number, since 2×146199919² = 42748832631213122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146199929) 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, 73099959 + 73099960.

It is an arithmetic number, because the mean of its divisors is an integer number (73099960).

Almost surely, 2^146199919 is an apocalyptic number.

146199919 is a deficient number, since it is larger than the sum of its proper divisors (1).

146199919 is an equidigital number, since it uses as much as digits as its factorization.

146199919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 157464, while the sum is 49.

The square root of 146199919 is about 12091.3158506426. The cubic root of 146199919 is about 526.8039758864.

The spelling of 146199919 in words is "one hundred forty-six million, one hundred ninety-nine thousand, nine hundred nineteen".