201989153 has 2 divisors, whose sum is σ = 201989154. Its totient is φ = 201989152.

The previous prime is 201989131. The next prime is 201989167. The reversal of 201989153 is 351989102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 148157584 + 53831569 = 12172^2 + 7337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201989153 is a prime.

It is not a weakly prime, because it can be changed into another prime (201989113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100994576 + 100994577.

It is an arithmetic number, because the mean of its divisors is an integer number (100994577).

Almost surely, 2^201989153 is an apocalyptic number.

It is an amenable number.

201989153 is a deficient number, since it is larger than the sum of its proper divisors (1).

201989153 is an equidigital number, since it uses as much as digits as its factorization.

201989153 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 201989153 is about 14212.2888023006. The cubic root of 201989153 is about 586.7359282824.

The spelling of 201989153 in words is "two hundred one million, nine hundred eighty-nine thousand, one hundred fifty-three".