87148125 has 30 divisors (see below), whose sum is σ = 157310582. Its totient is φ = 46476000.

The previous prime is 87148123. The next prime is 87148129. The reversal of 87148125 is 52184178.

It can be written as a sum of positive squares in 5 ways, for example, as 58568409 + 28579716 = 7653^2 + 5346^2 .

It is not a de Polignac number, because 87148125 - 2¹ = 87148123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 87148125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87148121) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 2122 + ... + 13371.

Almost surely, 2^87148125 is an apocalyptic number.

It is an amenable number.

87148125 is a deficient number, since it is larger than the sum of its proper divisors (70162457).

87148125 is a wasteful number, since it uses less digits than its factorization.

87148125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15519 (or 15501 counting only the distinct ones).

The product of its digits is 17920, while the sum is 36.

The square root of 87148125 is about 9335.3160096485. The cubic root of 87148125 is about 443.3560942705.

The spelling of 87148125 in words is "eighty-seven million, one hundred forty-eight thousand, one hundred twenty-five".