84513125 has 10 divisors (see below), whose sum is σ = 105608382. Its totient is φ = 67610000.

The previous prime is 84513119. The next prime is 84513131. The reversal of 84513125 is 52131548.

It is an interprime number because it is at equal distance from previous prime (84513119) and next prime (84513131).

It can be written as a sum of positive squares in 5 ways, for example, as 17698849 + 66814276 = 4207^2 + 8174^2 .

It is not a de Polignac number, because 84513125 - 2¹⁶ = 84447589 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 (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 66986 + ... + 68235.

Almost surely, 2^84513125 is an apocalyptic number.

It is an amenable number.

84513125 is a deficient number, since it is larger than the sum of its proper divisors (21095257).

84513125 is an equidigital number, since it uses as much as digits as its factorization.

84513125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135241 (or 135226 counting only the distinct ones).

The product of its digits is 4800, while the sum is 29.

The square root of 84513125 is about 9193.1020335902. The cubic root of 84513125 is about 438.8418665165.

The spelling of 84513125 in words is "eighty-four million, five hundred thirteen thousand, one hundred twenty-five".