423134501 has 4 divisors (see below), whose sum is σ = 426223212. Its totient is φ = 420045792.

The previous prime is 423134497. The next prime is 423134513. The reversal of 423134501 is 105431324.

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 292581025 + 130553476 = 17105^2 + 11426^2 .

It is a cyclic number.

It is not a de Polignac number, because 423134501 - 2² = 423134497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423134401) 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, 1544150 + ... + 1544423.

It is an arithmetic number, because the mean of its divisors is an integer number (106555803).

Almost surely, 2^423134501 is an apocalyptic number.

It is an amenable number.

423134501 is a deficient number, since it is larger than the sum of its proper divisors (3088711).

423134501 is a wasteful number, since it uses less digits than its factorization.

423134501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3088710.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 423134501 is about 20570.2333725216. The cubic root of 423134501 is about 750.7456294330.

Adding to 423134501 its reverse (105431324), we get a palindrome (528565825).

The spelling of 423134501 in words is "four hundred twenty-three million, one hundred thirty-four thousand, five hundred one".