223155878 has 16 divisors (see below), whose sum is σ = 366688080. Its totient is φ = 101011200.

The previous prime is 223155871. The next prime is 223155901. The reversal of 223155878 is 878551322.

223155878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×223155878³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223155871) 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, 15743 + ... + 26346.

It is an arithmetic number, because the mean of its divisors is an integer number (22918005).

Almost surely, 2^223155878 is an apocalyptic number.

223155878 is a deficient number, since it is larger than the sum of its proper divisors (143532202).

223155878 is a wasteful number, since it uses less digits than its factorization.

223155878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42343.

The product of its digits is 134400, while the sum is 41.

The square root of 223155878 is about 14938.4027928022. The cubic root of 223155878 is about 606.5539616069.

The spelling of 223155878 in words is "two hundred twenty-three million, one hundred fifty-five thousand, eight hundred seventy-eight".