201156349 has 2 divisors, whose sum is σ = 201156350. Its totient is φ = 201156348.

The previous prime is 201156337. The next prime is 201156377. The reversal of 201156349 is 943651102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201129124 + 27225 = 14182^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 201156349 - 2²³ = 192767741 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201156349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201156149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100578174 + 100578175.

It is an arithmetic number, because the mean of its divisors is an integer number (100578175).

Almost surely, 2^201156349 is an apocalyptic number.

It is an amenable number.

201156349 is a deficient number, since it is larger than the sum of its proper divisors (1).

201156349 is an equidigital number, since it uses as much as digits as its factorization.

201156349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 201156349 is about 14182.9598109844. The cubic root of 201156349 is about 585.9284441277.

The spelling of 201156349 in words is "two hundred one million, one hundred fifty-six thousand, three hundred forty-nine".