87018545 has 8 divisors (see below), whose sum is σ = 108962496. Its totient is φ = 66588016.

The previous prime is 87018539. The next prime is 87018553. The reversal of 87018545 is 54581078.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87018545 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 87018499 and 87018508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378227 + ... + 378456.

It is an arithmetic number, because the mean of its divisors is an integer number (13620312).

Almost surely, 2^87018545 is an apocalyptic number.

It is an amenable number.

87018545 is a deficient number, since it is larger than the sum of its proper divisors (21943951).

87018545 is a wasteful number, since it uses less digits than its factorization.

87018545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756711.

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 87018545 is about 9328.3731164657. The cubic root of 87018545 is about 443.1362441387.

The spelling of 87018545 in words is "eighty-seven million, eighteen thousand, five hundred forty-five".