87146955 has 32 divisors (see below), whose sum is σ = 177062400. Its totient is φ = 39838176.

The previous prime is 87146923. The next prime is 87146957. The reversal of 87146955 is 55964178.

It is not a de Polignac number, because 87146955 - 2⁵ = 87146923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87146955.

It is not an unprimeable number, because it can be changed into a prime (87146957) 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 31 ways as a sum of consecutive naturals, for example, 45165 + ... + 47054.

It is an arithmetic number, because the mean of its divisors is an integer number (5533200).

Almost surely, 2^87146955 is an apocalyptic number.

87146955 is an abundant number, since it is smaller than the sum of its proper divisors (89915445).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87146955 is a wasteful number, since it uses less digits than its factorization.

87146955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92240 (or 92234 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 87146955 is about 9335.2533441787. The cubic root of 87146955 is about 443.3541101814.

The spelling of 87146955 in words is "eighty-seven million, one hundred forty-six thousand, nine hundred fifty-five".