81046154 has 16 divisors (see below), whose sum is σ = 139105728. Its totient is φ = 34691712.

The previous prime is 81046151. The next prime is 81046177. The reversal of 81046154 is 45164018.

It is not an unprimeable number, because it can be changed into a prime (81046151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10202 + ... + 16314.

It is an arithmetic number, because the mean of its divisors is an integer number (8694108).

Almost surely, 2^81046154 is an apocalyptic number.

81046154 is a deficient number, since it is larger than the sum of its proper divisors (58059574).

81046154 is a wasteful number, since it uses less digits than its factorization.

81046154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7069.

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

The square root of 81046154 is about 9002.5637459559. The cubic root of 81046154 is about 432.7570352250.

It can be divided in two parts, 810 and 46154, that added together give a palindrome (46964).

The spelling of 81046154 in words is "eighty-one million, forty-six thousand, one hundred fifty-four".