146229425 has 6 divisors (see below), whose sum is σ = 181324518. Its totient is φ = 116983520.

The previous prime is 146229389. The next prime is 146229431. The reversal of 146229425 is 524922641.

It can be written as a sum of positive squares in 3 ways, for example, as 327184 + 145902241 = 572^2 + 12079^2 .

It is not a de Polignac number, because 146229425 - 2¹⁶ = 146163889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2924564 + ... + 2924613.

It is an arithmetic number, because the mean of its divisors is an integer number (30220753).

Almost surely, 2^146229425 is an apocalyptic number.

It is an amenable number.

146229425 is a deficient number, since it is larger than the sum of its proper divisors (35095093).

146229425 is an equidigital number, since it uses as much as digits as its factorization.

146229425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849187 (or 5849182 counting only the distinct ones).

The product of its digits is 34560, while the sum is 35.

The square root of 146229425 is about 12092.5359209721. The cubic root of 146229425 is about 526.8394132808.

The spelling of 146229425 in words is "one hundred forty-six million, two hundred twenty-nine thousand, four hundred twenty-five".