869153125 has 24 divisors (see below), whose sum is σ = 1115881704. Its totient is φ = 676440000.

The previous prime is 869153083. The next prime is 869153179. The reversal of 869153125 is 521351968.

869153125 = 20846² + 20847².

It can be written as a sum of positive squares in 12 ways, for example, as 646278084 + 222875041 = 25422^2 + 14929^2 .

It is not a de Polignac number, because 869153125 - 2¹⁷ = 869022053 is a prime.

It is a Duffinian number.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 111867 + ... + 119383.

It is an arithmetic number, because the mean of its divisors is an integer number (46495071).

Almost surely, 2^869153125 is an apocalyptic number.

869153125 is the 20847-th centered square number.

It is an amenable number.

869153125 is a deficient number, since it is larger than the sum of its proper divisors (246728579).

869153125 is an frugal number, since it uses more digits than its factorization.

869153125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7579 (or 7559 counting only the distinct ones).

The product of its digits is 64800, while the sum is 40.

The square root of 869153125 is about 29481.4030364906. The cubic root of 869153125 is about 954.3304152098.

It can be divided in two parts, 8691 and 53125, that added together give a palindrome (61816).

The spelling of 869153125 in words is "eight hundred sixty-nine million, one hundred fifty-three thousand, one hundred twenty-five".