87061130 has 16 divisors (see below), whose sum is σ = 168764904. Its totient is φ = 32145600.

The previous prime is 87061129. The next prime is 87061133. The reversal of 87061130 is 3116078.

It can be written as a sum of positive squares in 4 ways, for example, as 76440049 + 10621081 = 8743^2 + 3259^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 87061130.

It is not an unprimeable number, because it can be changed into a prime (87061133) 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 7 ways as a sum of consecutive naturals, for example, 334721 + ... + 334980.

Almost surely, 2^87061130 is an apocalyptic number.

87061130 is a deficient number, since it is larger than the sum of its proper divisors (81703774).

87061130 is a wasteful number, since it uses less digits than its factorization.

87061130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 669721.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 87061130 is about 9330.6553896283. The cubic root of 87061130 is about 443.2085194583.

The spelling of 87061130 in words is "eighty-seven million, sixty-one thousand, one hundred thirty".