245315522 has 16 divisors (see below), whose sum is σ = 373033080. Its totient is φ = 120979968.

The previous prime is 245315519. The next prime is 245315533. The reversal of 245315522 is 225513542.

It can be written as a sum of positive squares in 4 ways, for example, as 142110241 + 103205281 = 11921^2 + 10159^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 59504 + ... + 63492.

Almost surely, 2^245315522 is an apocalyptic number.

245315522 is a deficient number, since it is larger than the sum of its proper divisors (127717558).

245315522 is a wasteful number, since it uses less digits than its factorization.

245315522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4405.

The product of its digits is 12000, while the sum is 29.

The square root of 245315522 is about 15662.5515801226. The cubic root of 245315522 is about 626.0009747966. Note that the first 3 decimals are identical.

The spelling of 245315522 in words is "two hundred forty-five million, three hundred fifteen thousand, five hundred twenty-two".