103787129 has 2 divisors, whose sum is σ = 103787130. Its totient is φ = 103787128.

The previous prime is 103787107. The next prime is 103787147. The reversal of 103787129 is 921787301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99460729 + 4326400 = 9973^2 + 2080^2 .

It is a cyclic number.

It is not a de Polignac number, because 103787129 - 2¹² = 103783033 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 103787092 and 103787101.

It is not a weakly prime, because it can be changed into another prime (103787149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51893564 + 51893565.

It is an arithmetic number, because the mean of its divisors is an integer number (51893565).

Almost surely, 2^103787129 is an apocalyptic number.

It is an amenable number.

103787129 is a deficient number, since it is larger than the sum of its proper divisors (1).

103787129 is an equidigital number, since it uses as much as digits as its factorization.

103787129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 103787129 is about 10187.5968216258. The cubic root of 103787129 is about 469.9458652000.

The spelling of 103787129 in words is "one hundred three million, seven hundred eighty-seven thousand, one hundred twenty-nine".