126364019 has 2 divisors, whose sum is σ = 126364020. Its totient is φ = 126364018.

The previous prime is 126363983. The next prime is 126364037. The reversal of 126364019 is 910463621.

It is a strong prime.

It is an emirp because it is prime and its reverse (910463621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126364019 - 2²⁴ = 109586803 is a prime.

It is a super-2 number, since 2×126364019² = 31935730595664722, which contains 22 as substring.

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 (126364099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63182009 + 63182010.

It is an arithmetic number, because the mean of its divisors is an integer number (63182010).

Almost surely, 2^126364019 is an apocalyptic number.

126364019 is a deficient number, since it is larger than the sum of its proper divisors (1).

126364019 is an equidigital number, since it uses as much as digits as its factorization.

126364019 is an odious number, because the sum of its binary digits is odd.

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

The square root of 126364019 is about 11241.1751609874. The cubic root of 126364019 is about 501.8121165333.

The spelling of 126364019 in words is "one hundred twenty-six million, three hundred sixty-four thousand, nineteen".