146336447 has 4 divisors (see below), whose sum is σ = 146554560. Its totient is φ = 146118336.

The previous prime is 146336429. The next prime is 146336471. The reversal of 146336447 is 744633641.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 146336447 - 2⁶ = 146336383 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146336447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146336947) 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 in 3 ways as a sum of consecutive naturals, for example, 108047 + ... + 109392.

It is an arithmetic number, because the mean of its divisors is an integer number (36638640).

Almost surely, 2^146336447 is an apocalyptic number.

146336447 is a deficient number, since it is larger than the sum of its proper divisors (218113).

146336447 is an equidigital number, since it uses as much as digits as its factorization.

146336447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218112.

The product of its digits is 145152, while the sum is 38.

The square root of 146336447 is about 12096.9602380102. The cubic root of 146336447 is about 526.9679092111.

The spelling of 146336447 in words is "one hundred forty-six million, three hundred thirty-six thousand, four hundred forty-seven".