83144945 has 16 divisors (see below), whose sum is σ = 110917632. Its totient is φ = 59417280.

The previous prime is 83144939. The next prime is 83144947. The reversal of 83144945 is 54944138.

It is not a de Polignac number, because 83144945 - 2⁸ = 83144689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83144899 and 83144908.

It is not an unprimeable number, because it can be changed into a prime (83144947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18617 + ... + 22646.

It is an arithmetic number, because the mean of its divisors is an integer number (6932352).

Almost surely, 2^83144945 is an apocalyptic number.

It is an amenable number.

83144945 is a deficient number, since it is larger than the sum of its proper divisors (27772687).

83144945 is a wasteful number, since it uses less digits than its factorization.

83144945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41312.

The product of its digits is 69120, while the sum is 38.

The square root of 83144945 is about 9118.3849995490. The cubic root of 83144945 is about 436.4608392925.

The spelling of 83144945 in words is "eighty-three million, one hundred forty-four thousand, nine hundred forty-five".