201554629 has 2 divisors, whose sum is σ = 201554630. Its totient is φ = 201554628.

The previous prime is 201554621. The next prime is 201554663. The reversal of 201554629 is 926455102.

It is a happy number.

It is an a-pointer prime, because the next prime (201554663) can be obtained adding 201554629 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 141848100 + 59706529 = 11910^2 + 7727^2 .

It is a cyclic number.

It is not a de Polignac number, because 201554629 - 2³ = 201554621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201554594 and 201554603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201554621) 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, 100777314 + 100777315.

It is an arithmetic number, because the mean of its divisors is an integer number (100777315).

Almost surely, 2^201554629 is an apocalyptic number.

It is an amenable number.

201554629 is a deficient number, since it is larger than the sum of its proper divisors (1).

201554629 is an equidigital number, since it uses as much as digits as its factorization.

201554629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 201554629 is about 14196.9936606311. The cubic root of 201554629 is about 586.3148926702.

It can be divided in two parts, 2015 and 54629, that added together give a square (56644 = 238²).

The spelling of 201554629 in words is "two hundred one million, five hundred fifty-four thousand, six hundred twenty-nine".