8180534 has 4 divisors (see below), whose sum is σ = 12270804. Its totient is φ = 4090266.

The previous prime is 8180531. The next prime is 8180537. The reversal of 8180534 is 4350818.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (8180531) and next prime (8180537).

It is a super-2 number, since 2×8180534² = 133842273050312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 8180497 and 8180506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8180531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2045132 + ... + 2045135.

It is an arithmetic number, because the mean of its divisors is an integer number (3067701).

Almost surely, 2^8180534 is an apocalyptic number.

8180534 is a deficient number, since it is larger than the sum of its proper divisors (4090270).

8180534 is a wasteful number, since it uses less digits than its factorization.

8180534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090269.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 8180534 is about 2860.1632820523. The cubic root of 8180534 is about 201.4932729315.

The spelling of 8180534 in words is "eight million, one hundred eighty thousand, five hundred thirty-four".