8181452 has 6 divisors (see below), whose sum is σ = 14317548. Its totient is φ = 4090724.

The previous prime is 8181449. The next prime is 8181499. The reversal of 8181452 is 2541818.

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022678 + ... + 1022685.

It is an arithmetic number, because the mean of its divisors is an integer number (2386258).

Almost surely, 2^8181452 is an apocalyptic number.

It is an amenable number.

8181452 is a deficient number, since it is larger than the sum of its proper divisors (6136096).

8181452 is a wasteful number, since it uses less digits than its factorization.

8181452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045367 (or 2045365 counting only the distinct ones).

The product of its digits is 2560, while the sum is 29.

The square root of 8181452 is about 2860.3237578987. The cubic root of 8181452 is about 201.5008096809.

The spelling of 8181452 in words is "eight million, one hundred eighty-one thousand, four hundred fifty-two".