201541229 has 2 divisors, whose sum is σ = 201541230. Its totient is φ = 201541228.

The previous prime is 201541211. The next prime is 201541259. The reversal of 201541229 is 922145102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190164100 + 11377129 = 13790^2 + 3373^2 .

It is a cyclic number.

It is not a de Polignac number, because 201541229 - 2²⁰ = 200492653 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 201541198 and 201541207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201541259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100770614 + 100770615.

It is an arithmetic number, because the mean of its divisors is an integer number (100770615).

Almost surely, 2^201541229 is an apocalyptic number.

It is an amenable number.

201541229 is a deficient number, since it is larger than the sum of its proper divisors (1).

201541229 is an equidigital number, since it uses as much as digits as its factorization.

201541229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 201541229 is about 14196.5217218867. The cubic root of 201541229 is about 586.3018990156.

The spelling of 201541229 in words is "two hundred one million, five hundred forty-one thousand, two hundred twenty-nine".