83087149 has 2 divisors, whose sum is σ = 83087150. Its totient is φ = 83087148.

The previous prime is 83087029. The next prime is 83087153. The reversal of 83087149 is 94178038.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72131049 + 10956100 = 8493^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 83087149 - 2⁷ = 83087021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (83087159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41543574 + 41543575.

It is an arithmetic number, because the mean of its divisors is an integer number (41543575).

Almost surely, 2^83087149 is an apocalyptic number.

It is an amenable number.

83087149 is a deficient number, since it is larger than the sum of its proper divisors (1).

83087149 is an equidigital number, since it uses as much as digits as its factorization.

83087149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 83087149 is about 9115.2152470471. The cubic root of 83087149 is about 436.3596844642.

The spelling of 83087149 in words is "eighty-three million, eighty-seven thousand, one hundred forty-nine".