209129483 has 2 divisors, whose sum is σ = 209129484. Its totient is φ = 209129482.

The previous prime is 209129443. The next prime is 209129491. The reversal of 209129483 is 384921902.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 209129483 - 2⁶ = 209129419 is a prime.

It is not a weakly prime, because it can be changed into another prime (209129443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104564741 + 104564742.

It is an arithmetic number, because the mean of its divisors is an integer number (104564742).

Almost surely, 2^209129483 is an apocalyptic number.

209129483 is a deficient number, since it is larger than the sum of its proper divisors (1).

209129483 is an equidigital number, since it uses as much as digits as its factorization.

209129483 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 209129483 is about 14461.3098646008. The cubic root of 209129483 is about 593.5697426882.

The spelling of 209129483 in words is "two hundred nine million, one hundred twenty-nine thousand, four hundred eighty-three".