223545401 has 2 divisors, whose sum is σ = 223545402. Its totient is φ = 223545400.

The previous prime is 223545389. The next prime is 223545437. The reversal of 223545401 is 104545322.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 220819600 + 2725801 = 14860^2 + 1651^2 .

It is a cyclic number.

It is not a de Polignac number, because 223545401 - 2⁶ = 223545337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (223545481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111772700 + 111772701.

It is an arithmetic number, because the mean of its divisors is an integer number (111772701).

Almost surely, 2^223545401 is an apocalyptic number.

It is an amenable number.

223545401 is a deficient number, since it is larger than the sum of its proper divisors (1).

223545401 is an equidigital number, since it uses as much as digits as its factorization.

223545401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 223545401 is about 14951.4347472074. The cubic root of 223545401 is about 606.9066737778.

The spelling of 223545401 in words is "two hundred twenty-three million, five hundred forty-five thousand, four hundred one".