83945149 has 8 divisors (see below), whose sum is σ = 85880448. Its totient is φ = 82016160.

The previous prime is 83945143. The next prime is 83945153. The reversal of 83945149 is 94154938.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 83945149 - 2¹⁷ = 83814077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83945143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34594 + ... + 36940.

It is an arithmetic number, because the mean of its divisors is an integer number (10735056).

Almost surely, 2^83945149 is an apocalyptic number.

It is an amenable number.

83945149 is a deficient number, since it is larger than the sum of its proper divisors (1935299).

83945149 is a wasteful number, since it uses less digits than its factorization.

83945149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3155.

The product of its digits is 155520, while the sum is 43.

The square root of 83945149 is about 9162.1585338827. The cubic root of 83945149 is about 437.8565674370.

The spelling of 83945149 in words is "eighty-three million, nine hundred forty-five thousand, one hundred forty-nine".