83145237 has 8 divisors (see below), whose sum is σ = 126697536. Its totient is φ = 47511552.

The previous prime is 83145217. The next prime is 83145247. The reversal of 83145237 is 73254138.

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

It is not a de Polignac number, because 83145237 - 2⁶ = 83145173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 83145198 and 83145207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83145217) 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, 1979628 + ... + 1979669.

It is an arithmetic number, because the mean of its divisors is an integer number (15837192).

Almost surely, 2^83145237 is an apocalyptic number.

It is an amenable number.

83145237 is a deficient number, since it is larger than the sum of its proper divisors (43552299).

83145237 is a wasteful number, since it uses less digits than its factorization.

83145237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959307.

The product of its digits is 20160, while the sum is 33.

The square root of 83145237 is about 9118.4010111422. The cubic root of 83145237 is about 436.4613502332.

The spelling of 83145237 in words is "eighty-three million, one hundred forty-five thousand, two hundred thirty-seven".