245173829 has 2 divisors, whose sum is σ = 245173830. Its totient is φ = 245173828.

The previous prime is 245173811. The next prime is 245173843. The reversal of 245173829 is 928371542.

245173829 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., 211557025 + 33616804 = 14545^2 + 5798^2 .

It is a cyclic number.

It is not a de Polignac number, because 245173829 - 2¹⁶ = 245108293 is a prime.

It is a super-2 number, since 2×245173829² = 120220412853042482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245173849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122586914 + 122586915.

It is an arithmetic number, because the mean of its divisors is an integer number (122586915).

Almost surely, 2^245173829 is an apocalyptic number.

It is an amenable number.

245173829 is a deficient number, since it is larger than the sum of its proper divisors (1).

245173829 is an equidigital number, since it uses as much as digits as its factorization.

245173829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 41.

The square root of 245173829 is about 15658.0276216387. The cubic root of 245173829 is about 625.8804265894.

The spelling of 245173829 in words is "two hundred forty-five million, one hundred seventy-three thousand, eight hundred twenty-nine".