146271449 has 2 divisors, whose sum is σ = 146271450. Its totient is φ = 146271448.

The previous prime is 146271413. The next prime is 146271457. The reversal of 146271449 is 944172641.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99102025 + 47169424 = 9955^2 + 6868^2 .

It is a cyclic number.

It is not a de Polignac number, because 146271449 - 2⁸ = 146271193 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (146271469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73135724 + 73135725.

It is an arithmetic number, because the mean of its divisors is an integer number (73135725).

Almost surely, 2^146271449 is an apocalyptic number.

It is an amenable number.

146271449 is a deficient number, since it is larger than the sum of its proper divisors (1).

146271449 is an equidigital number, since it uses as much as digits as its factorization.

146271449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48384, while the sum is 38.

The square root of 146271449 is about 12094.2733969429. The cubic root of 146271449 is about 526.8898768564.

The spelling of 146271449 in words is "one hundred forty-six million, two hundred seventy-one thousand, four hundred forty-nine".