612123534 has 32 divisors (see below), whose sum is σ = 1483937280. Its totient is φ = 185491800.

The previous prime is 612123511. The next prime is 612123583. The reversal of 612123534 is 435321216.

612123534 is a `hidden beast` number, since 6 + 1 + 2 + 123 + 534 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 612123498 and 612123507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 514662 + ... + 515849.

It is an arithmetic number, because the mean of its divisors is an integer number (46373040).

Almost surely, 2^612123534 is an apocalyptic number.

612123534 is an abundant number, since it is smaller than the sum of its proper divisors (871813746).

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

612123534 is a wasteful number, since it uses less digits than its factorization.

612123534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1030533 (or 1030527 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 612123534 is about 24741.1304107149. The cubic root of 612123534 is about 849.0755966597.

It can be divided in two parts, 61212 and 3534, that added together give a palindrome (64746).

The spelling of 612123534 in words is "six hundred twelve million, one hundred twenty-three thousand, five hundred thirty-four".