146111809 has 2 divisors, whose sum is σ = 146111810. Its totient is φ = 146111808.

The previous prime is 146111761. The next prime is 146111857. The reversal of 146111809 is 908111641.

146111809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (146111761) and next prime (146111857).

It can be written as a sum of positive squares in only one way, i.e., 124813584 + 21298225 = 11172^2 + 4615^2 .

It is a cyclic number.

It is not a de Polignac number, because 146111809 - 2¹⁹ = 145587521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146111899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73055904 + 73055905.

It is an arithmetic number, because the mean of its divisors is an integer number (73055905).

Almost surely, 2^146111809 is an apocalyptic number.

It is an amenable number.

146111809 is a deficient number, since it is larger than the sum of its proper divisors (1).

146111809 is an equidigital number, since it uses as much as digits as its factorization.

146111809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 146111809 is about 12087.6717774764. The cubic root of 146111809 is about 526.6981253352.

The spelling of 146111809 in words is "one hundred forty-six million, one hundred eleven thousand, eight hundred nine".