87381541 has 8 divisors (see below), whose sum is σ = 94278240. Its totient is φ = 80509872.

The previous prime is 87381533. The next prime is 87381559. The reversal of 87381541 is 14518378.

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 87381541 - 2³ = 87381533 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 87381541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87381571) by changing a digit.

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, 1350 + ... + 13288.

It is an arithmetic number, because the mean of its divisors is an integer number (11784780).

Almost surely, 2^87381541 is an apocalyptic number.

It is an amenable number.

87381541 is a deficient number, since it is larger than the sum of its proper divisors (6896699).

87381541 is a wasteful number, since it uses less digits than its factorization.

87381541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12515.

The product of its digits is 26880, while the sum is 37.

The square root of 87381541 is about 9347.8094225332. The cubic root of 87381541 is about 443.7515671174.

The spelling of 87381541 in words is "eighty-seven million, three hundred eighty-one thousand, five hundred forty-one".