146445647 has 2 divisors, whose sum is σ = 146445648. Its totient is φ = 146445646.

The previous prime is 146445641. The next prime is 146445671. The reversal of 146445647 is 746544641.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 146445647 - 2⁴ = 146445631 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (146445641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73222823 + 73222824.

It is an arithmetic number, because the mean of its divisors is an integer number (73222824).

Almost surely, 2^146445647 is an apocalyptic number.

146445647 is a deficient number, since it is larger than the sum of its proper divisors (1).

146445647 is an equidigital number, since it uses as much as digits as its factorization.

146445647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 322560, while the sum is 41.

The square root of 146445647 is about 12101.4729268796. The cubic root of 146445647 is about 527.0989555977.

The spelling of 146445647 in words is "one hundred forty-six million, four hundred forty-five thousand, six hundred forty-seven".