83243137 has 4 divisors (see below), whose sum is σ = 86113620. Its totient is φ = 80372656.

The previous prime is 83243119. The next prime is 83243143. The reversal of 83243137 is 73134238.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17048641 + 66194496 = 4129^2 + 8136^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83243137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83243099 and 83243108.

It is not an unprimeable number, because it can be changed into a prime (83243197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1435198 + ... + 1435255.

It is an arithmetic number, because the mean of its divisors is an integer number (21528405).

Almost surely, 2^83243137 is an apocalyptic number.

It is an amenable number.

83243137 is a deficient number, since it is larger than the sum of its proper divisors (2870483).

83243137 is a wasteful number, since it uses less digits than its factorization.

83243137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2870482.

The product of its digits is 12096, while the sum is 31.

The square root of 83243137 is about 9123.7676976126. The cubic root of 83243137 is about 436.6325879691.

The spelling of 83243137 in words is "eighty-three million, two hundred forty-three thousand, one hundred thirty-seven".