312663253 has 16 divisors (see below), whose sum is σ = 366960384. Its totient is φ = 260807040.

The previous prime is 312663233. The next prime is 312663257. The reversal of 312663253 is 352366213.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312663253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312663257) 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, 138651 + ... + 140887.

It is an arithmetic number, because the mean of its divisors is an integer number (22935024).

Almost surely, 2^312663253 is an apocalyptic number.

It is an amenable number.

312663253 is a deficient number, since it is larger than the sum of its proper divisors (54297131).

312663253 is a wasteful number, since it uses less digits than its factorization.

312663253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2772.

The product of its digits is 19440, while the sum is 31.

The square root of 312663253 is about 17682.2864188996. The cubic root of 312663253 is about 678.7225533955.

The spelling of 312663253 in words is "three hundred twelve million, six hundred sixty-three thousand, two hundred fifty-three".