201545634629 has 2 divisors, whose sum is σ = 201545634630. Its totient is φ = 201545634628.

The previous prime is 201545634607. The next prime is 201545634779. The reversal of 201545634629 is 926436545102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182440036900 + 19105597729 = 427130^2 + 138223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201545634629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201545634029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100772817314 + 100772817315.

It is an arithmetic number, because the mean of its divisors is an integer number (100772817315).

Almost surely, 2^201545634629 is an apocalyptic number.

It is an amenable number.

201545634629 is a deficient number, since it is larger than the sum of its proper divisors (1).

201545634629 is an equidigital number, since it uses as much as digits as its factorization.

201545634629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 47.

The spelling of 201545634629 in words is "two hundred one billion, five hundred forty-five million, six hundred thirty-four thousand, six hundred twenty-nine".