245105522 has 4 divisors (see below), whose sum is σ = 367658286. Its totient is φ = 122552760.

The previous prime is 245105521. The next prime is 245105527. The reversal of 245105522 is 225501542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 180929401 + 64176121 = 13451^2 + 8011^2 .

It is a junction number, because it is equal to n+sod(n) for n = 245105491 and 245105500.

It is not an unprimeable number, because it can be changed into a prime (245105521) by changing a digit.

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 as a sum of consecutive naturals, namely, 61276379 + ... + 61276382.

Almost surely, 2^245105522 is an apocalyptic number.

245105522 is a deficient number, since it is larger than the sum of its proper divisors (122552764).

245105522 is a wasteful number, since it uses less digits than its factorization.

245105522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122552763.

The product of its (nonzero) digits is 4000, while the sum is 26.

The square root of 245105522 is about 15655.8462562712. The cubic root of 245105522 is about 625.8222964246.

The spelling of 245105522 in words is "two hundred forty-five million, one hundred five thousand, five hundred twenty-two".