1125647 has 2 divisors, whose sum is σ = 1125648. Its totient is φ = 1125646.

The previous prime is 1125629. The next prime is 1125653. The reversal of 1125647 is 7465211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1125647 - 2⁸ = 1125391 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1122647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562823 + 562824.

It is an arithmetic number, because the mean of its divisors is an integer number (562824).

2^1125647 is an apocalyptic number.

1125647 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125647 is an equidigital number, since it uses as much as digits as its factorization.

1125647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 1125647 is about 1060.9651266653. The cubic root of 1125647 is about 104.0241253203.

The spelling of 1125647 in words is "one million, one hundred twenty-five thousand, six hundred forty-seven".