146218473 has 8 divisors (see below), whose sum is σ = 216620000. Its totient is φ = 97478964.

The previous prime is 146218441. The next prime is 146218483. The reversal of 146218473 is 374812641.

It is not a de Polignac number, because 146218473 - 2⁵ = 146218441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (146218483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2707723 + ... + 2707776.

It is an arithmetic number, because the mean of its divisors is an integer number (27077500).

Almost surely, 2^146218473 is an apocalyptic number.

It is an amenable number.

146218473 is a deficient number, since it is larger than the sum of its proper divisors (70401527).

146218473 is an equidigital number, since it uses as much as digits as its factorization.

146218473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5415508 (or 5415502 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 146218473 is about 12092.0830711669. The cubic root of 146218473 is about 526.8262602296.

The spelling of 146218473 in words is "one hundred forty-six million, two hundred eighteen thousand, four hundred seventy-three".