103128629 has 2 divisors, whose sum is σ = 103128630. Its totient is φ = 103128628.

The previous prime is 103128617. The next prime is 103128643. The reversal of 103128629 is 926821301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67404100 + 35724529 = 8210^2 + 5977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103128629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103128595 and 103128604.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103128689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51564314 + 51564315.

It is an arithmetic number, because the mean of its divisors is an integer number (51564315).

Almost surely, 2^103128629 is an apocalyptic number.

It is an amenable number.

103128629 is a deficient number, since it is larger than the sum of its proper divisors (1).

103128629 is an equidigital number, since it uses as much as digits as its factorization.

103128629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 103128629 is about 10155.2266838313. The cubic root of 103128629 is about 468.9498645420.

The spelling of 103128629 in words is "one hundred three million, one hundred twenty-eight thousand, six hundred twenty-nine".