201650993 has 2 divisors, whose sum is σ = 201650994. Its totient is φ = 201650992.

The previous prime is 201650963. The next prime is 201651019. The reversal of 201650993 is 399056102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201299344 + 351649 = 14188^2 + 593^2 .

It is a cyclic number.

It is not a de Polignac number, because 201650993 - 2²⁰ = 200602417 is a prime.

It is not a weakly prime, because it can be changed into another prime (201650963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100825496 + 100825497.

It is an arithmetic number, because the mean of its divisors is an integer number (100825497).

Almost surely, 2^201650993 is an apocalyptic number.

It is an amenable number.

201650993 is a deficient number, since it is larger than the sum of its proper divisors (1).

201650993 is an equidigital number, since it uses as much as digits as its factorization.

201650993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 35.

The square root of 201650993 is about 14200.3870721893. The cubic root of 201650993 is about 586.4083175425.

The spelling of 201650993 in words is "two hundred one million, six hundred fifty thousand, nine hundred ninety-three".