201430105 has 4 divisors (see below), whose sum is σ = 241716132. Its totient is φ = 161144080.

The previous prime is 201430091. The next prime is 201430111. The reversal of 201430105 is 501034102.

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 117744201 + 83685904 = 10851^2 + 9148^2 .

It is not a de Polignac number, because 201430105 - 2²¹ = 199332953 is a prime.

It is a super-2 number, since 2×201430105² = 81148174400622050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20143006 + ... + 20143015.

It is an arithmetic number, because the mean of its divisors is an integer number (60429033).

Almost surely, 2^201430105 is an apocalyptic number.

It is an amenable number.

201430105 is a deficient number, since it is larger than the sum of its proper divisors (40286027).

201430105 is an equidigital number, since it uses as much as digits as its factorization.

201430105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40286026.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 201430105 is about 14192.6074066748. The cubic root of 201430105 is about 586.1941225727.

Adding to 201430105 its reverse (501034102), we get a palindrome (702464207).

The spelling of 201430105 in words is "two hundred one million, four hundred thirty thousand, one hundred five".