201655141 has 2 divisors, whose sum is σ = 201655142. Its totient is φ = 201655140.

The previous prime is 201655121. The next prime is 201655187. The reversal of 201655141 is 141556102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197964900 + 3690241 = 14070^2 + 1921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201655141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201655121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100827570 + 100827571.

It is an arithmetic number, because the mean of its divisors is an integer number (100827571).

Almost surely, 2^201655141 is an apocalyptic number.

It is an amenable number.

201655141 is a deficient number, since it is larger than the sum of its proper divisors (1).

201655141 is an equidigital number, since it uses as much as digits as its factorization.

201655141 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 201655141 is about 14200.5331237950. The cubic root of 201655141 is about 586.4123383592.

The spelling of 201655141 in words is "two hundred one million, six hundred fifty-five thousand, one hundred forty-one".