223154545 has 8 divisors (see below), whose sum is σ = 267866280. Its totient is φ = 178469760.

The previous prime is 223154537. The next prime is 223154557. The reversal of 223154545 is 545451322.

It can be written as a sum of positive squares in 4 ways, for example, as 6270016 + 216884529 = 2504^2 + 14727^2 .

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

It is not a de Polignac number, because 223154545 - 2³ = 223154537 is a prime.

It is a super-3 number, since 3×223154545³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25611 + ... + 33199.

It is an arithmetic number, because the mean of its divisors is an integer number (33483285).

Almost surely, 2^223154545 is an apocalyptic number.

It is an amenable number.

223154545 is a deficient number, since it is larger than the sum of its proper divisors (44711735).

223154545 is an equidigital number, since it uses as much as digits as its factorization.

223154545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13475.

The product of its digits is 24000, while the sum is 31.

The square root of 223154545 is about 14938.3581761852. The cubic root of 223154545 is about 606.5527538741.

The spelling of 223154545 in words is "two hundred twenty-three million, one hundred fifty-four thousand, five hundred forty-five".