423134531 has 8 divisors (see below), whose sum is σ = 437219328. Its totient is φ = 409077000.

The previous prime is 423134513. The next prime is 423134533. The reversal of 423134531 is 135431324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423134531 is a prime.

It is a super-2 number, since 2×423134531² = 358085662649179922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423134531.

It is not an unprimeable number, because it can be changed into a prime (423134533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27566 + ... + 40076.

It is an arithmetic number, because the mean of its divisors is an integer number (54652416).

Almost surely, 2^423134531 is an apocalyptic number.

423134531 is a deficient number, since it is larger than the sum of its proper divisors (14084797).

423134531 is a wasteful number, since it uses less digits than its factorization.

423134531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13633.

The product of its digits is 4320, while the sum is 26.

The square root of 423134531 is about 20570.2341017306. The cubic root of 423134531 is about 750.7456471755.

Adding to 423134531 its reverse (135431324), we get a palindrome (558565855).

The spelling of 423134531 in words is "four hundred twenty-three million, one hundred thirty-four thousand, five hundred thirty-one".