8081542 has 16 divisors (see below), whose sum is σ = 14031360. Its totient is φ = 3419208.

The previous prime is 8081539. The next prime is 8081543. The reversal of 8081542 is 2451808.

It is a super-2 number, since 2×8081542² = 130622642195528, which contains 22 as substring.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 8081542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8081543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2548 + ... + 4759.

It is an arithmetic number, because the mean of its divisors is an integer number (876960).

Almost surely, 2^8081542 is an apocalyptic number.

8081542 is a deficient number, since it is larger than the sum of its proper divisors (5949818).

8081542 is a wasteful number, since it uses less digits than its factorization.

8081542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7395.

The product of its (nonzero) digits is 2560, while the sum is 28.

The square root of 8081542 is about 2842.8053046243. The cubic root of 8081542 is about 200.6772209374.

The spelling of 8081542 in words is "eight million, eighty-one thousand, five hundred forty-two".