223734145 has 8 divisors (see below), whose sum is σ = 269654760. Its totient is φ = 178204800.

The previous prime is 223734143. The next prime is 223734157. The reversal of 223734145 is 541437322.

It is a happy number.

223734145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 90193009 + 133541136 = 9497^2 + 11556^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223734145 - 2¹ = 223734143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223734143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96556 + ... + 98845.

It is an arithmetic number, because the mean of its divisors is an integer number (33706845).

Almost surely, 2^223734145 is an apocalyptic number.

It is an amenable number.

223734145 is a deficient number, since it is larger than the sum of its proper divisors (45920615).

223734145 is a wasteful number, since it uses less digits than its factorization.

223734145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195635.

The product of its digits is 20160, while the sum is 31.

The square root of 223734145 is about 14957.7453180618. The cubic root of 223734145 is about 607.0774336755.

The spelling of 223734145 in words is "two hundred twenty-three million, seven hundred thirty-four thousand, one hundred forty-five".