201545741 has 2 divisors, whose sum is σ = 201545742. Its totient is φ = 201545740.

The previous prime is 201545717. The next prime is 201545753. The reversal of 201545741 is 147545102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185776900 + 15768841 = 13630^2 + 3971^2 .

It is a cyclic number.

It is not a de Polignac number, because 201545741 - 2⁶ = 201545677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201545341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100772870 + 100772871.

It is an arithmetic number, because the mean of its divisors is an integer number (100772871).

Almost surely, 2^201545741 is an apocalyptic number.

It is an amenable number.

201545741 is a deficient number, since it is larger than the sum of its proper divisors (1).

201545741 is an equidigital number, since it uses as much as digits as its factorization.

201545741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 201545741 is about 14196.6806331621. The cubic root of 201545741 is about 586.3062742567.

The spelling of 201545741 in words is "two hundred one million, five hundred forty-five thousand, seven hundred forty-one".