201014921 has 4 divisors (see below), whose sum is σ = 207946500. Its totient is φ = 194083344.

The previous prime is 201014899. The next prime is 201014959. The reversal of 201014921 is 129410102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 42758521 + 158256400 = 6539^2 + 12580^2 .

It is a cyclic number.

It is not a de Polignac number, because 201014921 - 2¹⁸ = 200752777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201014893 and 201014902.

It is not an unprimeable number, because it can be changed into a prime (201014221) 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, 3465746 + ... + 3465803.

It is an arithmetic number, because the mean of its divisors is an integer number (51986625).

Almost surely, 2^201014921 is an apocalyptic number.

It is an amenable number.

201014921 is a deficient number, since it is larger than the sum of its proper divisors (6931579).

201014921 is an equidigital number, since it uses as much as digits as its factorization.

201014921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931578.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 201014921 is about 14177.9730920890. The cubic root of 201014921 is about 585.7910947201.

The spelling of 201014921 in words is "two hundred one million, fourteen thousand, nine hundred twenty-one".