8161296 has 160 divisors (see below), whose sum is σ = 26248320. Its totient is φ = 2150400.

The previous prime is 8161273. The next prime is 8161319. The reversal of 8161296 is 6921618.

8161296 = 426² + 427² + ... + 466².

It is an interprime number because it is at equal distance from previous prime (8161273) and next prime (8161319).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 199036 + ... + 199076.

It is an arithmetic number, because the mean of its divisors is an integer number (164052).

Almost surely, 2^8161296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8161296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13124160).

8161296 is an abundant number, since it is smaller than the sum of its proper divisors (18087024).

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

8161296 is a wasteful number, since it uses less digits than its factorization.

8161296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105 (or 99 counting only the distinct ones).

The product of its digits is 5184, while the sum is 33.

The square root of 8161296 is about 2856.7982077844. The cubic root of 8161296 is about 201.3351997059.

It can be divided in two parts, 816 and 1296, that added together give a palindrome (2112).

The spelling of 8161296 in words is "eight million, one hundred sixty-one thousand, two hundred ninety-six".