1634126401 has 2 divisors, whose sum is σ = 1634126402. Its totient is φ = 1634126400.

The previous prime is 1634126393. The next prime is 1634126413. The reversal of 1634126401 is 1046214361.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1008126001 + 626000400 = 31751^2 + 25020^2 .

It is a cyclic number.

It is not a de Polignac number, because 1634126401 - 2³ = 1634126393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1634126401.

It is not a weakly prime, because it can be changed into another prime (1634106401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 817063200 + 817063201.

It is an arithmetic number, because the mean of its divisors is an integer number (817063201).

Almost surely, 2^1634126401 is an apocalyptic number.

It is an amenable number.

1634126401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1634126401 is an equidigital number, since it uses as much as digits as its factorization.

1634126401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1634126401 is about 40424.3293203487. The cubic root of 1634126401 is about 1177.8641822905.

The spelling of 1634126401 in words is "one billion, six hundred thirty-four million, one hundred twenty-six thousand, four hundred one".