1125629 has 2 divisors, whose sum is σ = 1125630. Its totient is φ = 1125628.

The previous prime is 1125599. The next prime is 1125647. The reversal of 1125629 is 9265211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 806404 + 319225 = 898^2 + 565^2 .

It is an emirp because it is prime and its reverse (9265211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125629 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1125598 and 1125607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1125679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562814 + 562815.

It is an arithmetic number, because the mean of its divisors is an integer number (562815).

2^1125629 is an apocalyptic number.

It is an amenable number.

1125629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125629 is an equidigital number, since it uses as much as digits as its factorization.

1125629 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 26.

The square root of 1125629 is about 1060.9566437890. The cubic root of 1125629 is about 104.0235708409.

The spelling of 1125629 in words is "one million, one hundred twenty-five thousand, six hundred twenty-nine".