87055147 has 4 divisors (see below), whose sum is σ = 92176056. Its totient is φ = 81934240.

The previous prime is 87055141. The next prime is 87055151. The reversal of 87055147 is 74155078.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74155078 = 2 ⋅37077539.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87055147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87055141) 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 3 ways as a sum of consecutive naturals, for example, 2560429 + ... + 2560462.

It is an arithmetic number, because the mean of its divisors is an integer number (23044014).

Almost surely, 2^87055147 is an apocalyptic number.

87055147 is a deficient number, since it is larger than the sum of its proper divisors (5120909).

87055147 is a wasteful number, since it uses less digits than its factorization.

87055147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5120908.

The product of its (nonzero) digits is 39200, while the sum is 37.

The square root of 87055147 is about 9330.3347742726. The cubic root of 87055147 is about 443.1983665259.

The spelling of 87055147 in words is "eighty-seven million, fifty-five thousand, one hundred forty-seven".