245021164 has 6 divisors (see below), whose sum is σ = 428787044. Its totient is φ = 122510580.

The previous prime is 245021149. The next prime is 245021167. The reversal of 245021164 is 461120542.

It is a happy number.

245021164 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (245021167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30627642 + ... + 30627649.

Almost surely, 2^245021164 is an apocalyptic number.

It is an amenable number.

245021164 is a deficient number, since it is larger than the sum of its proper divisors (183765880).

245021164 is a wasteful number, since it uses less digits than its factorization.

245021164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61255295 (or 61255293 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 245021164 is about 15653.1518870801. The cubic root of 245021164 is about 625.7504917387.

The spelling of 245021164 in words is "two hundred forty-five million, twenty-one thousand, one hundred sixty-four".