146423005 has 4 divisors (see below), whose sum is σ = 175707612. Its totient is φ = 117138400.

The previous prime is 146422993. The next prime is 146423009. The reversal of 146423005 is 500324641.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17623204 + 128799801 = 4198^2 + 11349^2 .

It is not a de Polignac number, because 146423005 - 2¹⁷ = 146291933 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 (146423009) 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, 14642296 + ... + 14642305.

It is an arithmetic number, because the mean of its divisors is an integer number (43926903).

Almost surely, 2^146423005 is an apocalyptic number.

It is an amenable number.

146423005 is a deficient number, since it is larger than the sum of its proper divisors (29284607).

146423005 is an equidigital number, since it uses as much as digits as its factorization.

146423005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29284606.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 146423005 is about 12100.5373847611. The cubic root of 146423005 is about 527.0717892282.

Adding to 146423005 its reverse (500324641), we get a palindrome (646747646).

The spelling of 146423005 in words is "one hundred forty-six million, four hundred twenty-three thousand, five".