87468145 has 8 divisors (see below), whose sum is σ = 111136104. Its totient is φ = 65858304.

The previous prime is 87468133. The next prime is 87468169. The reversal of 87468145 is 54186478.

87468145 = 2953² + 2954² + ... + 2962².

It can be written as a sum of positive squares in 4 ways, for example, as 47941776 + 39526369 = 6924^2 + 6287^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87468145 - 2¹⁷ = 87337073 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 514434 + ... + 514603.

It is an arithmetic number, because the mean of its divisors is an integer number (13892013).

Almost surely, 2^87468145 is an apocalyptic number.

87468145 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

87468145 is a deficient number, since it is larger than the sum of its proper divisors (23667959).

87468145 is a wasteful number, since it uses less digits than its factorization.

87468145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029059.

The product of its digits is 215040, while the sum is 43.

The square root of 87468145 is about 9352.4405905624. The cubic root of 87468145 is about 443.8981196998.

The spelling of 87468145 in words is "eighty-seven million, four hundred sixty-eight thousand, one hundred forty-five".