146344447 has 2 divisors, whose sum is σ = 146344448. Its totient is φ = 146344446.

The previous prime is 146344439. The next prime is 146344477. The reversal of 146344447 is 744443641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146344447 - 2³ = 146344439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146344427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73172223 + 73172224.

It is an arithmetic number, because the mean of its divisors is an integer number (73172224).

Almost surely, 2^146344447 is an apocalyptic number.

146344447 is a deficient number, since it is larger than the sum of its proper divisors (1).

146344447 is an equidigital number, since it uses as much as digits as its factorization.

146344447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 37.

The square root of 146344447 is about 12097.2908950723. The cubic root of 146344447 is about 526.9775118917.

The spelling of 146344447 in words is "one hundred forty-six million, three hundred forty-four thousand, four hundred forty-seven".