82149101 has 8 divisors (see below), whose sum is σ = 85050624. Its totient is φ = 79263360.

The previous prime is 82149073. The next prime is 82149121. The reversal of 82149101 is 10194128.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82149101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82149121) 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, 7190 + ... + 14696.

It is an arithmetic number, because the mean of its divisors is an integer number (10631328).

Almost surely, 2^82149101 is an apocalyptic number.

It is an amenable number.

82149101 is a deficient number, since it is larger than the sum of its proper divisors (2901523).

82149101 is a wasteful number, since it uses less digits than its factorization.

82149101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7891.

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 82149101 is about 9063.6141246194. The cubic root of 82149101 is about 434.7113088686.

The spelling of 82149101 in words is "eighty-two million, one hundred forty-nine thousand, one hundred one".