146074889 has 2 divisors, whose sum is σ = 146074890. Its totient is φ = 146074888.

The previous prime is 146074879. The next prime is 146074891. The reversal of 146074889 is 988470641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145612489 + 462400 = 12067^2 + 680^2 .

It is a cyclic number.

It is not a de Polignac number, because 146074889 - 2²⁰ = 145026313 is a prime.

It is a Sophie Germain prime.

Together with 146074891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (146074849) 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, 73037444 + 73037445.

It is an arithmetic number, because the mean of its divisors is an integer number (73037445).

Almost surely, 2^146074889 is an apocalyptic number.

It is an amenable number.

146074889 is a deficient number, since it is larger than the sum of its proper divisors (1).

146074889 is an equidigital number, since it uses as much as digits as its factorization.

146074889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 47.

The square root of 146074889 is about 12086.1445051762. The cubic root of 146074889 is about 526.6537590082.

The spelling of 146074889 in words is "one hundred forty-six million, seventy-four thousand, eight hundred eighty-nine".