146228983 has 4 divisors (see below), whose sum is σ = 146255688. Its totient is φ = 146202280.

The previous prime is 146228969. The next prime is 146229007. The reversal of 146228983 is 389822641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 389822641 = 13 ⋅29986357.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146228983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146228083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1816 + ... + 17197.

It is an arithmetic number, because the mean of its divisors is an integer number (36563922).

Almost surely, 2^146228983 is an apocalyptic number.

146228983 is a deficient number, since it is larger than the sum of its proper divisors (26705).

146228983 is an equidigital number, since it uses as much as digits as its factorization.

146228983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26704.

The product of its digits is 165888, while the sum is 43.

The square root of 146228983 is about 12092.5176452218. The cubic root of 146228983 is about 526.8388824636.

The spelling of 146228983 in words is "one hundred forty-six million, two hundred twenty-eight thousand, nine hundred eighty-three".