86161530 has 128 divisors (see below), whose sum is σ = 261692928. Its totient is φ = 17667072.

The previous prime is 86161529. The next prime is 86161549. The reversal of 86161530 is 3516168.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 100584 + ... + 101436.

It is an arithmetic number, because the mean of its divisors is an integer number (2044476).

Almost surely, 2^86161530 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86161530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (130846464).

86161530 is an abundant number, since it is smaller than the sum of its proper divisors (175531398).

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

86161530 is a wasteful number, since it uses less digits than its factorization.

86161530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 86161530 is about 9282.3235237736. The cubic root of 86161530 is about 441.6766777526.

Adding to 86161530 its reverse (3516168), we get a palindrome (89677698).

The spelling of 86161530 in words is "eighty-six million, one hundred sixty-one thousand, five hundred thirty".