82001145 has 16 divisors (see below), whose sum is σ = 131931072. Its totient is φ = 43490880.

The previous prime is 82001137. The next prime is 82001167. The reversal of 82001145 is 54110028.

It is not a de Polignac number, because 82001145 - 2³ = 82001137 is a prime.

It is a super-2 number, since 2×82001145² = 13448375562622050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12387 + ... + 17816.

It is an arithmetic number, because the mean of its divisors is an integer number (8245692).

Almost surely, 2^82001145 is an apocalyptic number.

It is an amenable number.

82001145 is a deficient number, since it is larger than the sum of its proper divisors (49929927).

82001145 is a wasteful number, since it uses less digits than its factorization.

82001145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30392.

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

The square root of 82001145 is about 9055.4483599654. The cubic root of 82001145 is about 434.4501706940.

The spelling of 82001145 in words is "eighty-two million, one thousand, one hundred forty-five".