146384621 has 4 divisors (see below), whose sum is σ = 146435100. Its totient is φ = 146334144.

The previous prime is 146384611. The next prime is 146384633. The reversal of 146384621 is 126483641.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 126483641 = 2099 ⋅60259.

It can be written as a sum of positive squares in 2 ways, for example, as 63027721 + 83356900 = 7939^2 + 9130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-146384621 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 (146384611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20606 + ... + 26783.

It is an arithmetic number, because the mean of its divisors is an integer number (36608775).

Almost surely, 2^146384621 is an apocalyptic number.

It is an amenable number.

146384621 is a deficient number, since it is larger than the sum of its proper divisors (50479).

146384621 is an equidigital number, since it uses as much as digits as its factorization.

146384621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50478.

The product of its digits is 27648, while the sum is 35.

The square root of 146384621 is about 12098.9512355410. The cubic root of 146384621 is about 527.0257288621.

The spelling of 146384621 in words is "one hundred forty-six million, three hundred eighty-four thousand, six hundred twenty-one".