201048109 has 2 divisors, whose sum is σ = 201048110. Its totient is φ = 201048108.

The previous prime is 201048061. The next prime is 201048143. The reversal of 201048109 is 901840102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174319209 + 26728900 = 13203^2 + 5170^2 .

It is a cyclic number.

It is not a de Polignac number, because 201048109 - 2⁹ = 201047597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201045109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100524054 + 100524055.

It is an arithmetic number, because the mean of its divisors is an integer number (100524055).

Almost surely, 2^201048109 is an apocalyptic number.

It is an amenable number.

201048109 is a deficient number, since it is larger than the sum of its proper divisors (1).

201048109 is an equidigital number, since it uses as much as digits as its factorization.

201048109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 201048109 is about 14179.1434508577. The cubic root of 201048109 is about 585.8233314067.

The spelling of 201048109 in words is "two hundred one million, forty-eight thousand, one hundred nine".