2134421801 has 2 divisors, whose sum is σ = 2134421802. Its totient is φ = 2134421800.

The previous prime is 2134421797. The next prime is 2134421813. The reversal of 2134421801 is 1081244312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1789205401 + 345216400 = 42299^2 + 18580^2 .

It is a cyclic number.

It is not a de Polignac number, because 2134421801 - 2² = 2134421797 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2134421101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067210900 + 1067210901.

It is an arithmetic number, because the mean of its divisors is an integer number (1067210901).

Almost surely, 2^2134421801 is an apocalyptic number.

It is an amenable number.

2134421801 is a deficient number, since it is larger than the sum of its proper divisors (1).

2134421801 is an equidigital number, since it uses as much as digits as its factorization.

2134421801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 2134421801 is about 46199.8030407057. The cubic root of 2134421801 is about 1287.5380805779.

The spelling of 2134421801 in words is "two billion, one hundred thirty-four million, four hundred twenty-one thousand, eight hundred one".