126419731 has 2 divisors, whose sum is σ = 126419732. Its totient is φ = 126419730.

The previous prime is 126419719. The next prime is 126419743. The reversal of 126419731 is 137914621.

It is a balanced prime because it is at equal distance from previous prime (126419719) and next prime (126419743).

It is a cyclic number.

It is not a de Polignac number, because 126419731 - 2⁹ = 126419219 is a prime.

It is a super-2 number, since 2×126419731² = 31963896772224722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (126419791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63209865 + 63209866.

It is an arithmetic number, because the mean of its divisors is an integer number (63209866).

Almost surely, 2^126419731 is an apocalyptic number.

126419731 is a deficient number, since it is larger than the sum of its proper divisors (1).

126419731 is an equidigital number, since it uses as much as digits as its factorization.

126419731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 34.

The square root of 126419731 is about 11243.6529206482. The cubic root of 126419731 is about 501.8858528422.

The spelling of 126419731 in words is "one hundred twenty-six million, four hundred nineteen thousand, seven hundred thirty-one".