146789399 has 2 divisors, whose sum is σ = 146789400. Its totient is φ = 146789398.

The previous prime is 146789369. The next prime is 146789411. The reversal of 146789399 is 993987641.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 146789399 - 2²⁰ = 145740823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146789369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73394699 + 73394700.

It is an arithmetic number, because the mean of its divisors is an integer number (73394700).

Almost surely, 2^146789399 is an apocalyptic number.

146789399 is a deficient number, since it is larger than the sum of its proper divisors (1).

146789399 is an equidigital number, since it uses as much as digits as its factorization.

146789399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 56.

The square root of 146789399 is about 12115.6675012151. The cubic root of 146789399 is about 527.5110532787.

The spelling of 146789399 in words is "one hundred forty-six million, seven hundred eighty-nine thousand, three hundred ninety-nine".