103628521 has 2 divisors, whose sum is σ = 103628522. Its totient is φ = 103628520.

The previous prime is 103628507. The next prime is 103628543. The reversal of 103628521 is 125826301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99281296 + 4347225 = 9964^2 + 2085^2 .

It is a cyclic number.

It is not a de Polignac number, because 103628521 - 2¹¹ = 103626473 is a prime.

It is a super-3 number, since 3×103628521³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103628521.

It is not a weakly prime, because it can be changed into another prime (103620521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51814260 + 51814261.

It is an arithmetic number, because the mean of its divisors is an integer number (51814261).

Almost surely, 2^103628521 is an apocalyptic number.

It is an amenable number.

103628521 is a deficient number, since it is larger than the sum of its proper divisors (1).

103628521 is an equidigital number, since it uses as much as digits as its factorization.

103628521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 103628521 is about 10179.8094775885. The cubic root of 103628521 is about 469.7063519574.

The spelling of 103628521 in words is "one hundred three million, six hundred twenty-eight thousand, five hundred twenty-one".