869248155 has 16 divisors (see below), whose sum is σ = 1391768064. Its totient is φ = 463275360.

The previous prime is 869248147. The next prime is 869248183. The reversal of 869248155 is 551842968.

It is not a de Polignac number, because 869248155 - 2³ = 869248147 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2820 + ... + 41790.

It is an arithmetic number, because the mean of its divisors is an integer number (86985504).

Almost surely, 2^869248155 is an apocalyptic number.

869248155 is a deficient number, since it is larger than the sum of its proper divisors (522519909).

869248155 is a wasteful number, since it uses less digits than its factorization.

869248155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40466.

The product of its digits is 691200, while the sum is 48.

The square root of 869248155 is about 29483.0146864258. The cubic root of 869248155 is about 954.3651949327.

The spelling of 869248155 in words is "eight hundred sixty-nine million, two hundred forty-eight thousand, one hundred fifty-five".