223768137 has 32 divisors (see below), whose sum is σ = 315187200. Its totient is φ = 141039360.

The previous prime is 223768123. The next prime is 223768157. The reversal of 223768137 is 731867322.

It is not a de Polignac number, because 223768137 - 2⁷ = 223768009 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 223768095 and 223768104.

It is not an unprimeable number, because it can be changed into a prime (223768157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1124364 + ... + 1124562.

It is an arithmetic number, because the mean of its divisors is an integer number (9849600).

Almost surely, 2^223768137 is an apocalyptic number.

It is an amenable number.

223768137 is a deficient number, since it is larger than the sum of its proper divisors (91419063).

223768137 is a wasteful number, since it uses less digits than its factorization.

223768137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453.

The product of its digits is 84672, while the sum is 39.

The square root of 223768137 is about 14958.8815424149. The cubic root of 223768137 is about 607.1081766079.

The spelling of 223768137 in words is "two hundred twenty-three million, seven hundred sixty-eight thousand, one hundred thirty-seven".