83785153 has 2 divisors, whose sum is σ = 83785154. Its totient is φ = 83785152.

The previous prime is 83785127. The next prime is 83785187. The reversal of 83785153 is 35158738.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83777409 + 7744 = 9153^2 + 88^2 .

It is a cyclic number.

It is not a de Polignac number, because 83785153 - 2¹³ = 83776961 is a prime.

It is not a weakly prime, because it can be changed into another prime (83785753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41892576 + 41892577.

It is an arithmetic number, because the mean of its divisors is an integer number (41892577).

Almost surely, 2^83785153 is an apocalyptic number.

It is an amenable number.

83785153 is a deficient number, since it is larger than the sum of its proper divisors (1).

83785153 is an equidigital number, since it uses as much as digits as its factorization.

83785153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 100800, while the sum is 40.

The square root of 83785153 is about 9153.4230209250. The cubic root of 83785153 is about 437.5782116500.

It can be divided in two parts, 83785 and 153, that added together give a palindrome (83938).

The spelling of 83785153 in words is "eighty-three million, seven hundred eighty-five thousand, one hundred fifty-three".