1206426971 has 2 divisors, whose sum is σ = 1206426972. Its totient is φ = 1206426970.

The previous prime is 1206426967. The next prime is 1206426979. The reversal of 1206426971 is 1796246021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1206426971 - 2² = 1206426967 is a prime.

It is not a weakly prime, because it can be changed into another prime (1206426979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603213485 + 603213486.

It is an arithmetic number, because the mean of its divisors is an integer number (603213486).

Almost surely, 2^1206426971 is an apocalyptic number.

1206426971 is a deficient number, since it is larger than the sum of its proper divisors (1).

1206426971 is an equidigital number, since it uses as much as digits as its factorization.

1206426971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 1206426971 is about 34733.6576104504. The cubic root of 1206426971 is about 1064.5523245003.

The spelling of 1206426971 in words is "one billion, two hundred six million, four hundred twenty-six thousand, nine hundred seventy-one".