87388145 has 16 divisors (see below), whose sum is σ = 114851520. Its totient is φ = 63436224.

The previous prime is 87388073. The next prime is 87388151. The reversal of 87388145 is 54188378.

It is a cyclic number.

It is not a de Polignac number, because 87388145 - 2⁸ = 87387889 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87388096 and 87388105.

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 15 ways as a sum of consecutive naturals, for example, 7559 + ... + 15228.

It is an arithmetic number, because the mean of its divisors is an integer number (7178220).

Almost surely, 2^87388145 is an apocalyptic number.

It is an amenable number.

87388145 is a deficient number, since it is larger than the sum of its proper divisors (27463375).

87388145 is a wasteful number, since it uses less digits than its factorization.

87388145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22864.

The product of its digits is 215040, while the sum is 44.

The square root of 87388145 is about 9348.1626536983. The cubic root of 87388145 is about 443.7627459144.

The spelling of 87388145 in words is "eighty-seven million, three hundred eighty-eight thousand, one hundred forty-five".