146945473 has 4 divisors (see below), whose sum is σ = 147026880. Its totient is φ = 146864068.

The previous prime is 146945443. The next prime is 146945483. The reversal of 146945473 is 374549641.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 146945473 - 2⁹ = 146944961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146945443) 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 3 ways as a sum of consecutive naturals, for example, 37933 + ... + 41626.

It is an arithmetic number, because the mean of its divisors is an integer number (36756720).

Almost surely, 2^146945473 is an apocalyptic number.

It is an amenable number.

146945473 is a deficient number, since it is larger than the sum of its proper divisors (81407).

146945473 is an equidigital number, since it uses as much as digits as its factorization.

146945473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81406.

The product of its digits is 362880, while the sum is 43.

The square root of 146945473 is about 12122.1067888383. The cubic root of 146945473 is about 527.6979459710.

The spelling of 146945473 in words is "one hundred forty-six million, nine hundred forty-five thousand, four hundred seventy-three".