8154972 has 144 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 2195424.

The previous prime is 8154967. The next prime is 8154973. The reversal of 8154972 is 2794518.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8154973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121683 + ... + 121749.

It is an arithmetic number, because the mean of its divisors is an integer number (180880).

Almost surely, 2^8154972 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8154972, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13023360).

8154972 is an abundant number, since it is smaller than the sum of its proper divisors (17891748).

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

8154972 is a wasteful number, since it uses less digits than its factorization.

8154972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 102 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 8154972 is about 2855.6911597720. The cubic root of 8154972 is about 201.2831829342.

The spelling of 8154972 in words is "eight million, one hundred fifty-four thousand, nine hundred seventy-two".