229738545 has 16 divisors (see below), whose sum is σ = 408424320. Its totient is φ = 122527152.

The previous prime is 229738541. The next prime is 229738547. The reversal of 229738545 is 545837922.

229738545 is a `hidden beast` number, since 229 + 7 + 385 + 45 = 666.

It is not a de Polignac number, because 229738545 - 2² = 229738541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 229738545.

It is not an unprimeable number, because it can be changed into a prime (229738541) 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, 850749 + ... + 851018.

It is an arithmetic number, because the mean of its divisors is an integer number (25526520).

Almost surely, 2^229738545 is an apocalyptic number.

It is an amenable number.

229738545 is a deficient number, since it is larger than the sum of its proper divisors (178685775).

229738545 is a wasteful number, since it uses less digits than its factorization.

229738545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701781 (or 1701775 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 229738545 is about 15157.1285209303. The cubic root of 229738545 is about 612.4603178512.

The spelling of 229738545 in words is "two hundred twenty-nine million, seven hundred thirty-eight thousand, five hundred forty-five".