126311963 has 2 divisors, whose sum is σ = 126311964. Its totient is φ = 126311962.

The previous prime is 126311959. The next prime is 126311987. The reversal of 126311963 is 369113621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126311963 - 2² = 126311959 is a prime.

It is not a weakly prime, because it can be changed into another prime (126311923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63155981 + 63155982.

It is an arithmetic number, because the mean of its divisors is an integer number (63155982).

Almost surely, 2^126311963 is an apocalyptic number.

126311963 is a deficient number, since it is larger than the sum of its proper divisors (1).

126311963 is an equidigital number, since it uses as much as digits as its factorization.

126311963 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 126311963 is about 11238.8595061955. The cubic root of 126311963 is about 501.7431994485.

The spelling of 126311963 in words is "one hundred twenty-six million, three hundred eleven thousand, nine hundred sixty-three".