201001019 has 8 divisors (see below), whose sum is σ = 211722000. Its totient is φ = 190294272.

The previous prime is 201001007. The next prime is 201001037. The reversal of 201001019 is 910100102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 201001019 - 2²⁰ = 199952443 is a prime.

It is a super-2 number, since 2×201001019² = 80802819278076722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201000994 and 201001012.

It is not an unprimeable number, because it can be changed into a prime (201001219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37967 + ... + 42935.

It is an arithmetic number, because the mean of its divisors is an integer number (26465250).

Almost surely, 2^201001019 is an apocalyptic number.

201001019 is a deficient number, since it is larger than the sum of its proper divisors (10720981).

201001019 is a wasteful number, since it uses less digits than its factorization.

201001019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7117.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 201001019 is about 14177.4828160714. The cubic root of 201001019 is about 585.7775901578. Note that the first 3 decimals are identical.

The spelling of 201001019 in words is "two hundred one million, one thousand, nineteen".