223155403 has 4 divisors (see below), whose sum is σ = 223414848. Its totient is φ = 222895960.

The previous prime is 223155397. The next prime is 223155419. The reversal of 223155403 is 304551322.

223155403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223155403 - 2²¹ = 221058251 is a prime.

It is a super-3 number, since 3×223155403³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223155463) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128428 + ... + 130153.

It is an arithmetic number, because the mean of its divisors is an integer number (55853712).

Almost surely, 2^223155403 is an apocalyptic number.

223155403 is a deficient number, since it is larger than the sum of its proper divisors (259445).

223155403 is an equidigital number, since it uses as much as digits as its factorization.

223155403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259444.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 223155403 is about 14938.3868941730. The cubic root of 223155403 is about 606.5535312451.

The spelling of 223155403 in words is "two hundred twenty-three million, one hundred fifty-five thousand, four hundred three".