245223451129 has 2 divisors, whose sum is σ = 245223451130. Its totient is φ = 245223451128.

The previous prime is 245223451097. The next prime is 245223451141. The reversal of 245223451129 is 921154322542.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221607445504 + 23616005625 = 470752^2 + 153675^2 .

It is a cyclic number.

It is not a de Polignac number, because 245223451129 - 2⁵ = 245223451097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 245223451091 and 245223451100.

It is not a weakly prime, because it can be changed into another prime (245223431129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122611725564 + 122611725565.

It is an arithmetic number, because the mean of its divisors is an integer number (122611725565).

Almost surely, 2^245223451129 is an apocalyptic number.

It is an amenable number.

245223451129 is a deficient number, since it is larger than the sum of its proper divisors (1).

245223451129 is an equidigital number, since it uses as much as digits as its factorization.

245223451129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 40.

The spelling of 245223451129 in words is "two hundred forty-five billion, two hundred twenty-three million, four hundred fifty-one thousand, one hundred twenty-nine".