146222449 has 2 divisors, whose sum is σ = 146222450. Its totient is φ = 146222448.

The previous prime is 146222413. The next prime is 146222459. The reversal of 146222449 is 944222641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 6036849 = 11840^2 + 2457^2 .

It is a cyclic number.

It is not a de Polignac number, because 146222449 - 2¹¹ = 146220401 is a prime.

It is not a weakly prime, because it can be changed into another prime (146222459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73111224 + 73111225.

It is an arithmetic number, because the mean of its divisors is an integer number (73111225).

Almost surely, 2^146222449 is an apocalyptic number.

It is an amenable number.

146222449 is a deficient number, since it is larger than the sum of its proper divisors (1).

146222449 is an equidigital number, since it uses as much as digits as its factorization.

146222449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

The square root of 146222449 is about 12092.2474751388. The cubic root of 146222449 is about 526.8310353724.

It can be divided in two parts, 14622 and 2449, that added together give a palindrome (17071).

The spelling of 146222449 in words is "one hundred forty-six million, two hundred twenty-two thousand, four hundred forty-nine".