82154112 has 32 divisors (see below), whose sum is σ = 218222880. Its totient is φ = 27384576.

The previous prime is 82154101. The next prime is 82154113. The reversal of 82154112 is 21145128.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (82154113) 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, 106588 + ... + 107355.

It is an arithmetic number, because the mean of its divisors is an integer number (6819465).

Almost surely, 2^82154112 is an apocalyptic number.

It is an amenable number.

82154112 is an abundant number, since it is smaller than the sum of its proper divisors (136068768).

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

82154112 is a wasteful number, since it uses less digits than its factorization.

82154112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213960 (or 213948 counting only the distinct ones).

The product of its digits is 640, while the sum is 24.

The square root of 82154112 is about 9063.8905553851. The cubic root of 82154112 is about 434.7201476510.

The spelling of 82154112 in words is "eighty-two million, one hundred fifty-four thousand, one hundred twelve".