146940229 has 2 divisors, whose sum is σ = 146940230. Its totient is φ = 146940228.

The previous prime is 146940193. The next prime is 146940253. The reversal of 146940229 is 922049641.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 108784900 + 38155329 = 10430^2 + 6177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146940229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146940259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73470114 + 73470115.

It is an arithmetic number, because the mean of its divisors is an integer number (73470115).

Almost surely, 2^146940229 is an apocalyptic number.

It is an amenable number.

146940229 is a deficient number, since it is larger than the sum of its proper divisors (1).

146940229 is an equidigital number, since it uses as much as digits as its factorization.

146940229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 146940229 is about 12121.8904878736. The cubic root of 146940229 is about 527.6916686290.

The spelling of 146940229 in words is "one hundred forty-six million, nine hundred forty thousand, two hundred twenty-nine".