126304691 has 2 divisors, whose sum is σ = 126304692. Its totient is φ = 126304690.

The previous prime is 126304667. The next prime is 126304697. The reversal of 126304691 is 196403621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126304691 - 2⁶ = 126304627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126304697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63152345 + 63152346.

It is an arithmetic number, because the mean of its divisors is an integer number (63152346).

Almost surely, 2^126304691 is an apocalyptic number.

126304691 is a deficient number, since it is larger than the sum of its proper divisors (1).

126304691 is an equidigital number, since it uses as much as digits as its factorization.

126304691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 126304691 is about 11238.5359811677. The cubic root of 126304691 is about 501.7335705200.

The spelling of 126304691 in words is "one hundred twenty-six million, three hundred four thousand, six hundred ninety-one".