229172663 has 4 divisors (see below), whose sum is σ = 229316880. Its totient is φ = 229028448.

The previous prime is 229172591. The next prime is 229172681. The reversal of 229172663 is 366271922.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366271922 = 2 ⋅183135961.

It is a cyclic number.

It is not a de Polignac number, because 229172663 - 2⁸ = 229172407 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 (229172683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69698 + ... + 72911.

It is an arithmetic number, because the mean of its divisors is an integer number (57329220).

Almost surely, 2^229172663 is an apocalyptic number.

229172663 is a deficient number, since it is larger than the sum of its proper divisors (144217).

229172663 is a wasteful number, since it uses less digits than its factorization.

229172663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144216.

The product of its digits is 54432, while the sum is 38.

The square root of 229172663 is about 15138.4498215636. The cubic root of 229172663 is about 611.9570425300.

The spelling of 229172663 in words is "two hundred twenty-nine million, one hundred seventy-two thousand, six hundred sixty-three".