612531412 has 12 divisors (see below), whose sum is σ = 1078127316. Its totient is φ = 304495040.

The previous prime is 612531397. The next prime is 612531433. The reversal of 612531412 is 214135216.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 286151056 + 326380356 = 16916^2 + 18066^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441889 + ... + 443272.

It is an arithmetic number, because the mean of its divisors is an integer number (89843943).

Almost surely, 2^612531412 is an apocalyptic number.

It is an amenable number.

612531412 is a deficient number, since it is larger than the sum of its proper divisors (465595904).

612531412 is a wasteful number, since it uses less digits than its factorization.

612531412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 885338 (or 885336 counting only the distinct ones).

The product of its digits is 1440, while the sum is 25.

The square root of 612531412 is about 24749.3719516274. The cubic root of 612531412 is about 849.2641437662.

Adding to 612531412 its reverse (214135216), we get a palindrome (826666628).

The spelling of 612531412 in words is "six hundred twelve million, five hundred thirty-one thousand, four hundred twelve".