423531256146 has 16 divisors (see below), whose sum is σ = 876271564800. Its totient is φ = 136308909968.

The previous prime is 423531256121. The next prime is 423531256147. The reversal of 423531256146 is 641652135324.

It is a junction number, because it is equal to n+sod(n) for n = 423531256098 and 423531256107.

It is not an unprimeable number, because it can be changed into a prime (423531256147) 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, 1217043666 + ... + 1217044013.

It is an arithmetic number, because the mean of its divisors is an integer number (54766972800).

Almost surely, 2^423531256146 is an apocalyptic number.

423531256146 is an abundant number, since it is smaller than the sum of its proper divisors (452740308654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423531256146 is a wasteful number, since it uses less digits than its factorization.

423531256146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434087713.

The product of its digits is 518400, while the sum is 42.

The spelling of 423531256146 in words is "four hundred twenty-three billion, five hundred thirty-one million, two hundred fifty-six thousand, one hundred forty-six".