1125001 has 2 divisors, whose sum is σ = 1125002. Its totient is φ = 1125000.

The previous prime is 1124993. The next prime is 1125013. The reversal of 1125001 is 1005211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 921600 + 203401 = 960^2 + 451^2 .

It is a cyclic number.

It is not a de Polignac number, because 1125001 - 2³ = 1124993 is a prime.

1125001 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1125401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562500 + 562501.

It is an arithmetic number, because the mean of its divisors is an integer number (562501).

2^1125001 is an apocalyptic number.

It is an amenable number.

1125001 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125001 is an equidigital number, since it uses as much as digits as its factorization.

1125001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 1125001 is about 1060.6606431842. The cubic root of 1125001 is about 104.0042219686.

The spelling of 1125001 in words is "one million, one hundred twenty-five thousand, one".