612106311 has 8 divisors (see below), whose sum is σ = 825312240. Its totient is φ = 403485632.

The previous prime is 612106307. The next prime is 612106321. The reversal of 612106311 is 113601216.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 612106311 - 2² = 612106307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612106321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146000 + ... + 1146533.

It is an arithmetic number, because the mean of its divisors is an integer number (103164030).

Almost surely, 2^612106311 is an apocalyptic number.

612106311 is a deficient number, since it is larger than the sum of its proper divisors (213205929).

612106311 is a wasteful number, since it uses less digits than its factorization.

612106311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2292625.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 612106311 is about 24740.7823441378. The cubic root of 612106311 is about 849.0676332529.

Adding to 612106311 its reverse (113601216), we get a palindrome (725707527).

The spelling of 612106311 in words is "six hundred twelve million, one hundred six thousand, three hundred eleven".