8120154 has 16 divisors (see below), whose sum is σ = 18560448. Its totient is φ = 2320032.

The previous prime is 8120153. The next prime is 8120179. The reversal of 8120154 is 4510218.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 8120154.

It is not an unprimeable number, because it can be changed into a prime (8120153) 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, 96627 + ... + 96710.

It is an arithmetic number, because the mean of its divisors is an integer number (1160028).

Almost surely, 2^8120154 is an apocalyptic number.

8120154 is an abundant number, since it is smaller than the sum of its proper divisors (10440294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8120154 is a wasteful number, since it uses less digits than its factorization.

8120154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193349.

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 8120154 is about 2849.5883913295. The cubic root of 8120154 is about 200.9963119048.

The spelling of 8120154 in words is "eight million, one hundred twenty thousand, one hundred fifty-four".