83157637 has 2 divisors, whose sum is σ = 83157638. Its totient is φ = 83157636.

The previous prime is 83157631. The next prime is 83157647. The reversal of 83157637 is 73675138.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77986561 + 5171076 = 8831^2 + 2274^2 .

It is a cyclic number.

It is not a de Polignac number, because 83157637 - 2³ = 83157629 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 83157637.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83157631) 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 as a sum of consecutive naturals, namely, 41578818 + 41578819.

It is an arithmetic number, because the mean of its divisors is an integer number (41578819).

Almost surely, 2^83157637 is an apocalyptic number.

It is an amenable number.

83157637 is a deficient number, since it is larger than the sum of its proper divisors (1).

83157637 is an equidigital number, since it uses as much as digits as its factorization.

83157637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 83157637 is about 9119.0809295674. The cubic root of 83157637 is about 436.4830466122.

The spelling of 83157637 in words is "eighty-three million, one hundred fifty-seven thousand, six hundred thirty-seven".