126311959 has 2 divisors, whose sum is σ = 126311960. Its totient is φ = 126311958.

The previous prime is 126311957. The next prime is 126311963. The reversal of 126311959 is 959113621.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (959113621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126311959 - 2¹ = 126311957 is a prime.

Together with 126311957, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126311957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63155979 + 63155980.

It is an arithmetic number, because the mean of its divisors is an integer number (63155980).

Almost surely, 2^126311959 is an apocalyptic number.

126311959 is a deficient number, since it is larger than the sum of its proper divisors (1).

126311959 is an equidigital number, since it uses as much as digits as its factorization.

126311959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14580, while the sum is 37.

The square root of 126311959 is about 11238.8593282415. The cubic root of 126311959 is about 501.7431941522.

The spelling of 126311959 in words is "one hundred twenty-six million, three hundred eleven thousand, nine hundred fifty-nine".