2001355219 has 4 divisors (see below), whose sum is σ = 2003638144. Its totient is φ = 1999072296.

The previous prime is 2001355217. The next prime is 2001355229. The reversal of 2001355219 is 9125531002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2001355219 - 2¹ = 2001355217 is a prime.

It is a super-2 number, since 2×2001355219² = 8010845425237075922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001355217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1140147 + ... + 1141900.

It is an arithmetic number, because the mean of its divisors is an integer number (500909536).

Almost surely, 2^2001355219 is an apocalyptic number.

2001355219 is a deficient number, since it is larger than the sum of its proper divisors (2282925).

2001355219 is an equidigital number, since it uses as much as digits as its factorization.

2001355219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2282924.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 2001355219 is about 44736.5087931546. The cubic root of 2001355219 is about 1260.2055637990.

The spelling of 2001355219 in words is "two billion, one million, three hundred fifty-five thousand, two hundred nineteen".