245423145 has 32 divisors (see below), whose sum is σ = 438349824. Its totient is φ = 116222400.

The previous prime is 245423083. The next prime is 245423159. The reversal of 245423145 is 541324542.

It is not a de Polignac number, because 245423145 - 2⁶ = 245423081 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10201 + ... + 24390.

It is an arithmetic number, because the mean of its divisors is an integer number (13698432).

Almost surely, 2^245423145 is an apocalyptic number.

It is an amenable number.

245423145 is a deficient number, since it is larger than the sum of its proper divisors (192926679).

245423145 is a wasteful number, since it uses less digits than its factorization.

245423145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34653.

The product of its digits is 19200, while the sum is 30.

The square root of 245423145 is about 15665.9868824150. The cubic root of 245423145 is about 626.0925062421.

Adding to 245423145 its reverse (541324542), we get a palindrome (786747687).

The spelling of 245423145 in words is "two hundred forty-five million, four hundred twenty-three thousand, one hundred forty-five".