146099389 has 2 divisors, whose sum is σ = 146099390. Its totient is φ = 146099388.

The previous prime is 146099357. The next prime is 146099407. The reversal of 146099389 is 983990641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145805625 + 293764 = 12075^2 + 542^2 .

It is a cyclic number.

It is not a de Polignac number, because 146099389 - 2⁵ = 146099357 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146099089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73049694 + 73049695.

It is an arithmetic number, because the mean of its divisors is an integer number (73049695).

Almost surely, 2^146099389 is an apocalyptic number.

It is an amenable number.

146099389 is a deficient number, since it is larger than the sum of its proper divisors (1).

146099389 is an equidigital number, since it uses as much as digits as its factorization.

146099389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 146099389 is about 12087.1580199814. The cubic root of 146099389 is about 526.6832012025.

The spelling of 146099389 in words is "one hundred forty-six million, ninety-nine thousand, three hundred eighty-nine".