146436889 has 2 divisors, whose sum is σ = 146436890. Its totient is φ = 146436888.

The previous prime is 146436877. The next prime is 146436919. The reversal of 146436889 is 988634641.

146436889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81360400 + 65076489 = 9020^2 + 8067^2 .

It is an emirp because it is prime and its reverse (988634641) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 146436889 - 2²¹ = 144339737 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146436809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73218444 + 73218445.

It is an arithmetic number, because the mean of its divisors is an integer number (73218445).

Almost surely, 2^146436889 is an apocalyptic number.

It is an amenable number.

146436889 is a deficient number, since it is larger than the sum of its proper divisors (1).

146436889 is an equidigital number, since it uses as much as digits as its factorization.

146436889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 995328, while the sum is 49.

The square root of 146436889 is about 12101.1110646915. Note that the first 3 decimals coincide. The cubic root of 146436889 is about 527.0884478888.

The spelling of 146436889 in words is "one hundred forty-six million, four hundred thirty-six thousand, eight hundred eighty-nine".