146868229 has 2 divisors, whose sum is σ = 146868230. Its totient is φ = 146868228.

The previous prime is 146868217. The next prime is 146868269. The reversal of 146868229 is 922868641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80820100 + 66048129 = 8990^2 + 8127^2 .

It is a cyclic number.

It is not a de Polignac number, because 146868229 - 2⁷ = 146868101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146868269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73434114 + 73434115.

It is an arithmetic number, because the mean of its divisors is an integer number (73434115).

Almost surely, 2^146868229 is an apocalyptic number.

It is an amenable number.

146868229 is a deficient number, since it is larger than the sum of its proper divisors (1).

146868229 is an equidigital number, since it uses as much as digits as its factorization.

146868229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 46.

The square root of 146868229 is about 12118.9202901909. The cubic root of 146868229 is about 527.6054657612.

The spelling of 146868229 in words is "one hundred forty-six million, eight hundred sixty-eight thousand, two hundred twenty-nine".