423501149 has 4 divisors (see below), whose sum is σ = 434947164. Its totient is φ = 412055136.

The previous prime is 423501131. The next prime is 423501163. The reversal of 423501149 is 941105324.

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 209815225 + 213685924 = 14485^2 + 14618^2 .

It is a cyclic number.

It is not a de Polignac number, because 423501149 - 2²⁸ = 155065693 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 (423501179) 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, 5722952 + ... + 5723025.

It is an arithmetic number, because the mean of its divisors is an integer number (108736791).

Almost surely, 2^423501149 is an apocalyptic number.

It is an amenable number.

423501149 is a deficient number, since it is larger than the sum of its proper divisors (11446015).

423501149 is a wasteful number, since it uses less digits than its factorization.

423501149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11446014.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 423501149 is about 20579.1435438893. The cubic root of 423501149 is about 750.9624083505.

The spelling of 423501149 in words is "four hundred twenty-three million, five hundred one thousand, one hundred forty-nine".