126461971 has 2 divisors, whose sum is σ = 126461972. Its totient is φ = 126461970.

The previous prime is 126461941. The next prime is 126461987. The reversal of 126461971 is 179164621.

It is a strong prime.

It is an emirp because it is prime and its reverse (179164621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126461971 - 2¹³ = 126453779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126461971.

It is not a weakly prime, because it can be changed into another prime (126461911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63230985 + 63230986.

It is an arithmetic number, because the mean of its divisors is an integer number (63230986).

Almost surely, 2^126461971 is an apocalyptic number.

126461971 is a deficient number, since it is larger than the sum of its proper divisors (1).

126461971 is an equidigital number, since it uses as much as digits as its factorization.

126461971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 126461971 is about 11245.5311568640. The cubic root of 126461971 is about 501.9417441644.

The spelling of 126461971 in words is "one hundred twenty-six million, four hundred sixty-one thousand, nine hundred seventy-one".