423146031 has 64 divisors (see below), whose sum is σ = 749399040. Its totient is φ = 205608960.

The previous prime is 423145999. The next prime is 423146039. The reversal of 423146031 is 130641324.

It is not a de Polignac number, because 423146031 - 2⁵ = 423145999 is a prime.

It is a super-2 number, since 2×423146031² = 358105127102105922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423145992 and 423146010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423146039) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1087585 + ... + 1087973.

It is an arithmetic number, because the mean of its divisors is an integer number (11709360).

Almost surely, 2^423146031 is an apocalyptic number.

423146031 is a deficient number, since it is larger than the sum of its proper divisors (326253009).

423146031 is a wasteful number, since it uses less digits than its factorization.

423146031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 423146031 is about 20570.5136299510. The cubic root of 423146031 is about 750.7524483983.

Adding to 423146031 its reverse (130641324), we get a palindrome (553787355).

The spelling of 423146031 in words is "four hundred twenty-three million, one hundred forty-six thousand, thirty-one".