2001351389 has 2 divisors, whose sum is σ = 2001351390. Its totient is φ = 2001351388.

The previous prime is 2001351323. The next prime is 2001351397. The reversal of 2001351389 is 9831531002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1904624164 + 96727225 = 43642^2 + 9835^2 .

It is a cyclic number.

It is not a de Polignac number, because 2001351389 - 2²⁰ = 2000302813 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2001351089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000675694 + 1000675695.

It is an arithmetic number, because the mean of its divisors is an integer number (1000675695).

Almost surely, 2^2001351389 is an apocalyptic number.

It is an amenable number.

2001351389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001351389 is an equidigital number, since it uses as much as digits as its factorization.

2001351389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 2001351389 is about 44736.4659869329. The cubic root of 2001351389 is about 1260.2047599120.

The spelling of 2001351389 in words is "two billion, one million, three hundred fifty-one thousand, three hundred eighty-nine".