126532291 has 2 divisors, whose sum is σ = 126532292. Its totient is φ = 126532290.

The previous prime is 126532277. The next prime is 126532303. The reversal of 126532291 is 192235621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126532291 - 2⁷ = 126532163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126532391) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63266145 + 63266146.

It is an arithmetic number, because the mean of its divisors is an integer number (63266146).

Almost surely, 2^126532291 is an apocalyptic number.

126532291 is a deficient number, since it is larger than the sum of its proper divisors (1).

126532291 is an equidigital number, since it uses as much as digits as its factorization.

126532291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 126532291 is about 11248.6572976511. The cubic root of 126532291 is about 502.0347629138.

The spelling of 126532291 in words is "one hundred twenty-six million, five hundred thirty-two thousand, two hundred ninety-one".