146426447 has 4 divisors (see below), whose sum is σ = 147936096. Its totient is φ = 144916800.

The previous prime is 146426443. The next prime is 146426453. The reversal of 146426447 is 744624641.

It is a happy number.

146426447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 146426447 - 2² = 146426443 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 146426447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146426443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 754679 + ... + 754872.

It is an arithmetic number, because the mean of its divisors is an integer number (36984024).

Almost surely, 2^146426447 is an apocalyptic number.

146426447 is a deficient number, since it is larger than the sum of its proper divisors (1509649).

146426447 is an equidigital number, since it uses as much as digits as its factorization.

146426447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509648.

The product of its digits is 129024, while the sum is 38.

The square root of 146426447 is about 12100.6796090137. The cubic root of 146426447 is about 527.0759191959.

The spelling of 146426447 in words is "one hundred forty-six million, four hundred twenty-six thousand, four hundred forty-seven".