201189629 has 2 divisors, whose sum is σ = 201189630. Its totient is φ = 201189628.

The previous prime is 201189619. The next prime is 201189631. The reversal of 201189629 is 926981102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179613604 + 21576025 = 13402^2 + 4645^2 .

It is a cyclic number.

It is not a de Polignac number, because 201189629 - 2¹² = 201185533 is a prime.

It is a Sophie Germain prime.

Together with 201189631, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 201189592 and 201189601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201189619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100594814 + 100594815.

It is an arithmetic number, because the mean of its divisors is an integer number (100594815).

Almost surely, 2^201189629 is an apocalyptic number.

It is an amenable number.

201189629 is a deficient number, since it is larger than the sum of its proper divisors (1).

201189629 is an equidigital number, since it uses as much as digits as its factorization.

201189629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 201189629 is about 14184.1330013505. The cubic root of 201189629 is about 585.9607550199.

The spelling of 201189629 in words is "two hundred one million, one hundred eighty-nine thousand, six hundred twenty-nine".