8540023154 has 8 divisors (see below), whose sum is σ = 13795422060. Its totient is φ = 3941549136.

The previous prime is 8540023103. The next prime is 8540023159. The reversal of 8540023154 is 4513200458.

It can be written as a sum of positive squares in 2 ways, for example, as 7536844225 + 1003178929 = 86815^2 + 31673^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×8540023154² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8540023154.

It is not an unprimeable number, because it can be changed into a prime (8540023159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164231189 + ... + 164231240.

Almost surely, 2^8540023154 is an apocalyptic number.

8540023154 is a deficient number, since it is larger than the sum of its proper divisors (5255398906).

8540023154 is a wasteful number, since it uses less digits than its factorization.

8540023154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328462444.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 8540023154 is about 92412.2456928734. The cubic root of 8540023154 is about 2044.0256878000.

The spelling of 8540023154 in words is "eight billion, five hundred forty million, twenty-three thousand, one hundred fifty-four".