87141128 has 16 divisors (see below), whose sum is σ = 163625280. Its totient is φ = 43507728.

The previous prime is 87141127. The next prime is 87141137. The reversal of 87141128 is 82114178.

It is a super-2 number, since 2×87141128² = 15187152378224768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87141094 and 87141103.

It is not an unprimeable number, because it can be changed into a prime (87141127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676 + ... + 13307.

It is an arithmetic number, because the mean of its divisors is an integer number (10226580).

Almost surely, 2^87141128 is an apocalyptic number.

It is an amenable number.

87141128 is a deficient number, since it is larger than the sum of its proper divisors (76484152).

87141128 is a wasteful number, since it uses less digits than its factorization.

87141128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15716 (or 15712 counting only the distinct ones).

The product of its digits is 3584, while the sum is 32.

The square root of 87141128 is about 9334.9412424503. The cubic root of 87141128 is about 443.3442284745.

The spelling of 87141128 in words is "eighty-seven million, one hundred forty-one thousand, one hundred twenty-eight".