612116523 has 12 divisors (see below), whose sum is σ = 887870880. Its totient is φ = 406368816.

The previous prime is 612116509. The next prime is 612116551. The reversal of 612116523 is 325611216.

612116523 is a `hidden beast` number, since 6 + 1 + 2 + 1 + 1 + 652 + 3 = 666.

It is not a de Polignac number, because 612116523 - 2¹² = 612112427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (612115523) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 140136 + ... + 144437.

It is an arithmetic number, because the mean of its divisors is an integer number (73989240).

Almost surely, 2^612116523 is an apocalyptic number.

612116523 is a deficient number, since it is larger than the sum of its proper divisors (275754357).

612116523 is a wasteful number, since it uses less digits than its factorization.

612116523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284818 (or 284815 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 612116523 is about 24740.9887231695. The cubic root of 612116523 is about 849.0723549983.

Adding to 612116523 its reverse (325611216), we get a palindrome (937727739).

The spelling of 612116523 in words is "six hundred twelve million, one hundred sixteen thousand, five hundred twenty-three".