245445349 has 2 divisors, whose sum is σ = 245445350. Its totient is φ = 245445348.

The previous prime is 245445331. The next prime is 245445353. The reversal of 245445349 is 943544542.

It is a happy number.

245445349 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188925025 + 56520324 = 13745^2 + 7518^2 .

It is a cyclic number.

It is not a de Polignac number, because 245445349 - 2²¹ = 243348197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245446349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122722674 + 122722675.

It is an arithmetic number, because the mean of its divisors is an integer number (122722675).

Almost surely, 2^245445349 is an apocalyptic number.

It is an amenable number.

245445349 is a deficient number, since it is larger than the sum of its proper divisors (1).

245445349 is an equidigital number, since it uses as much as digits as its factorization.

245445349 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 40.

The square root of 245445349 is about 15666.6955354344. The cubic root of 245445349 is about 626.1113870188. Note that the first 3 decimals are identical.

The spelling of 245445349 in words is "two hundred forty-five million, four hundred forty-five thousand, three hundred forty-nine".