612403263 has 12 divisors (see below), whose sum is σ = 885716728. Its totient is φ = 407745360.

The previous prime is 612403241. The next prime is 612403273. The reversal of 612403263 is 362304216.

612403263 is a `hidden beast` number, since 612 + 40 + 3 + 2 + 6 + 3 = 666.

It is not a de Polignac number, because 612403263 - 2⁸ = 612403007 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 (612403273) 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 11 ways as a sum of consecutive naturals, for example, 36148 + ... + 50313.

Almost surely, 2^612403263 is an apocalyptic number.

612403263 is a deficient number, since it is larger than the sum of its proper divisors (273313465).

612403263 is a wasteful number, since it uses less digits than its factorization.

612403263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87254 (or 87251 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 612403263 is about 24746.7828818212. The cubic root of 612403263 is about 849.2049141827.

Adding to 612403263 its reverse (362304216), we get a palindrome (974707479).

The spelling of 612403263 in words is "six hundred twelve million, four hundred three thousand, two hundred sixty-three".