201936641 has 2 divisors, whose sum is σ = 201936642. Its totient is φ = 201936640.

The previous prime is 201936629. The next prime is 201936649. The reversal of 201936641 is 146639102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198246400 + 3690241 = 14080^2 + 1921^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201936641 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201936598 and 201936607.

It is not a weakly prime, because it can be changed into another prime (201936649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100968320 + 100968321.

It is an arithmetic number, because the mean of its divisors is an integer number (100968321).

Almost surely, 2^201936641 is an apocalyptic number.

It is an amenable number.

201936641 is a deficient number, since it is larger than the sum of its proper divisors (1).

201936641 is an equidigital number, since it uses as much as digits as its factorization.

201936641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 201936641 is about 14210.4412668995. The cubic root of 201936641 is about 586.6850784439.

The spelling of 201936641 in words is "two hundred one million, nine hundred thirty-six thousand, six hundred forty-one".