229775247 has 24 divisors (see below), whose sum is σ = 378456624. Its totient is φ = 133081344.

The previous prime is 229775243. The next prime is 229775251. The reversal of 229775247 is 742577922.

It is an interprime number because it is at equal distance from previous prime (229775243) and next prime (229775251).

It is not a de Polignac number, because 229775247 - 2² = 229775243 is a prime.

It is a super-2 number, since 2×229775247² = 105593328267822018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (229775243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 55773 + ... + 59750.

It is an arithmetic number, because the mean of its divisors is an integer number (15769026).

Almost surely, 2^229775247 is an apocalyptic number.

229775247 is a deficient number, since it is larger than the sum of its proper divisors (148681377).

229775247 is a wasteful number, since it uses less digits than its factorization.

229775247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115559 (or 115556 counting only the distinct ones).

The product of its digits is 493920, while the sum is 45.

The square root of 229775247 is about 15158.3391900300. The cubic root of 229775247 is about 612.4929307528.

It can be divided in two parts, 22977 and 5247, that added together give a square (28224 = 168²).

The spelling of 229775247 in words is "two hundred twenty-nine million, seven hundred seventy-five thousand, two hundred forty-seven".