612312534 has 20 divisors (see below), whose sum is σ = 1372034004. Its totient is φ = 204104124.

The previous prime is 612312517. The next prime is 612312559. The reversal of 612312534 is 435213216.

612312534 is a `hidden beast` number, since 6 + 123 + 1 + 2 + 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 = 612312498 and 612312507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1889692 + ... + 1890015.

Almost surely, 2^612312534 is an apocalyptic number.

612312534 is an abundant number, since it is smaller than the sum of its proper divisors (759721470).

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

612312534 is a wasteful number, since it uses less digits than its factorization.

612312534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3779721 (or 3779712 counting only the distinct ones).

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

The square root of 612312534 is about 24744.9496665481. The cubic root of 612312534 is about 849.1629748688.

The spelling of 612312534 in words is "six hundred twelve million, three hundred twelve thousand, five hundred thirty-four".