126608291 has 2 divisors, whose sum is σ = 126608292. Its totient is φ = 126608290.

The previous prime is 126608281. The next prime is 126608329. The reversal of 126608291 is 192806621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126608291 - 2¹⁰ = 126607267 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126608221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63304145 + 63304146.

It is an arithmetic number, because the mean of its divisors is an integer number (63304146).

Almost surely, 2^126608291 is an apocalyptic number.

126608291 is a deficient number, since it is larger than the sum of its proper divisors (1).

126608291 is an equidigital number, since it uses as much as digits as its factorization.

126608291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 126608291 is about 11252.0349715063. The cubic root of 126608291 is about 502.1352563800.

The spelling of 126608291 in words is "one hundred twenty-six million, six hundred eight thousand, two hundred ninety-one".