146811447 has 20 divisors (see below), whose sum is σ = 224665056. Its totient is φ = 95484960.

The previous prime is 146811421. The next prime is 146811451. The reversal of 146811447 is 744118641.

It is not a de Polignac number, because 146811447 - 2¹⁰ = 146810423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146811407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18783 + ... + 25424.

Almost surely, 2^146811447 is an apocalyptic number.

146811447 is a deficient number, since it is larger than the sum of its proper divisors (77853609).

146811447 is an equidigital number, since it uses as much as digits as its factorization.

146811447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44260 (or 44251 counting only the distinct ones).

The product of its digits is 21504, while the sum is 36.

The square root of 146811447 is about 12116.5773632656. The cubic root of 146811447 is about 527.5374629548.

The spelling of 146811447 in words is "one hundred forty-six million, eight hundred eleven thousand, four hundred forty-seven".