146809499 has 2 divisors, whose sum is σ = 146809500. Its totient is φ = 146809498.

The previous prime is 146809489. The next prime is 146809511. The reversal of 146809499 is 994908641.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146809499 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146809489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73404749 + 73404750.

It is an arithmetic number, because the mean of its divisors is an integer number (73404750).

Almost surely, 2^146809499 is an apocalyptic number.

146809499 is a deficient number, since it is larger than the sum of its proper divisors (1).

146809499 is an equidigital number, since it uses as much as digits as its factorization.

146809499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 559872, while the sum is 50.

The square root of 146809499 is about 12116.4969772620. The cubic root of 146809499 is about 527.5351296955.

The spelling of 146809499 in words is "one hundred forty-six million, eight hundred nine thousand, four hundred ninety-nine".