612111263 has 16 divisors (see below), whose sum is σ = 639104256. Its totient is φ = 585773760.

The previous prime is 612111233. The next prime is 612111287. The reversal of 612111263 is 362111216.

It is a cyclic number.

It is not a de Polignac number, because 612111263 - 2²⁸ = 343675807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612111233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1216670 + ... + 1217172.

It is an arithmetic number, because the mean of its divisors is an integer number (39944016).

Almost surely, 2^612111263 is an apocalyptic number.

612111263 is a deficient number, since it is larger than the sum of its proper divisors (26992993).

612111263 is a wasteful number, since it uses less digits than its factorization.

612111263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1054.

The product of its digits is 432, while the sum is 23.

The square root of 612111263 is about 24740.8824216114. The cubic root of 612111263 is about 849.0699229269.

Adding to 612111263 its reverse (362111216), we get a palindrome (974222479).

The spelling of 612111263 in words is "six hundred twelve million, one hundred eleven thousand, two hundred sixty-three".