201553013 has 2 divisors, whose sum is σ = 201553014. Its totient is φ = 201553012.

The previous prime is 201552983. The next prime is 201553019. The reversal of 201553013 is 310355102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115304644 + 86248369 = 10738^2 + 9287^2 .

It is a cyclic number.

It is not a de Polignac number, because 201553013 - 2²⁴ = 184775797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201553019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100776506 + 100776507.

It is an arithmetic number, because the mean of its divisors is an integer number (100776507).

Almost surely, 2^201553013 is an apocalyptic number.

It is an amenable number.

201553013 is a deficient number, since it is larger than the sum of its proper divisors (1).

201553013 is an equidigital number, since it uses as much as digits as its factorization.

201553013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 201553013 is about 14196.9367470592. The cubic root of 201553013 is about 586.3133257047.

The spelling of 201553013 in words is "two hundred one million, five hundred fifty-three thousand, thirteen".