71160258 has 64 divisors (see below), whose sum is σ = 160352640. Its totient is φ = 20901888.

The previous prime is 71160253. The next prime is 71160269. The reversal of 71160258 is 85206117.

It is a cake number, because a cake can be divided into 71160258 parts by 753 planar cuts.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71160253) 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, 368610 + ... + 368802.

It is an arithmetic number, because the mean of its divisors is an integer number (2505510).

Almost surely, 2^71160258 is an apocalyptic number.

71160258 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 71160258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80176320).

71160258 is an abundant number, since it is smaller than the sum of its proper divisors (89192382).

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

71160258 is a wasteful number, since it uses less digits than its factorization.

71160258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 71160258 is about 8435.6539758338. The cubic root of 71160258 is about 414.3930897376.

The spelling of 71160258 in words is "seventy-one million, one hundred sixty thousand, two hundred fifty-eight".