83617149 has 16 divisors (see below), whose sum is σ = 139000320. Its totient is φ = 43437360.

The previous prime is 83617141. The next prime is 83617189. The reversal of 83617149 is 94171638.

It is not a de Polignac number, because 83617149 - 2³ = 83617141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83617141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180759 + ... + 181220.

It is an arithmetic number, because the mean of its divisors is an integer number (8687520).

Almost surely, 2^83617149 is an apocalyptic number.

It is an amenable number.

83617149 is a deficient number, since it is larger than the sum of its proper divisors (55383171).

83617149 is a wasteful number, since it uses less digits than its factorization.

83617149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362000.

The product of its digits is 36288, while the sum is 39.

The square root of 83617149 is about 9144.2413025904. The cubic root of 83617149 is about 437.2855421303.

The spelling of 83617149 in words is "eighty-three million, six hundred seventeen thousand, one hundred forty-nine".