201309853 has 2 divisors, whose sum is σ = 201309854. Its totient is φ = 201309852.

The previous prime is 201309841. The next prime is 201309863. The reversal of 201309853 is 358903102.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146579449 + 54730404 = 12107^2 + 7398^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201309853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201309803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100654926 + 100654927.

It is an arithmetic number, because the mean of its divisors is an integer number (100654927).

Almost surely, 2^201309853 is an apocalyptic number.

It is an amenable number.

201309853 is a deficient number, since it is larger than the sum of its proper divisors (1).

201309853 is an equidigital number, since it uses as much as digits as its factorization.

201309853 is an evil number, because the sum of its binary digits is even.

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

The square root of 201309853 is about 14188.3703433481. The cubic root of 201309853 is about 586.0774484411.

The spelling of 201309853 in words is "two hundred one million, three hundred nine thousand, eight hundred fifty-three".