245011155 has 16 divisors (see below), whose sum is σ = 392511744. Its totient is φ = 130508000.

The previous prime is 245011139. The next prime is 245011159. The reversal of 245011155 is 551110542.

It is not a de Polignac number, because 245011155 - 2⁴ = 245011139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245011159) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2530 + ... + 22280.

It is an arithmetic number, because the mean of its divisors is an integer number (24531984).

Almost surely, 2^245011155 is an apocalyptic number.

245011155 is a deficient number, since it is larger than the sum of its proper divisors (147500589).

245011155 is a wasteful number, since it uses less digits than its factorization.

245011155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20586.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 245011155 is about 15652.8321718467. The cubic root of 245011155 is about 625.7419710844.

Adding to 245011155 its reverse (551110542), we get a palindrome (796121697).

The spelling of 245011155 in words is "two hundred forty-five million, eleven thousand, one hundred fifty-five".