1125006403 has 2 divisors, whose sum is σ = 1125006404. Its totient is φ = 1125006402.

The previous prime is 1125006401. The next prime is 1125006409. The reversal of 1125006403 is 3046005211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1125006403 - 2¹ = 1125006401 is a prime.

Together with 1125006401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1125006401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562503201 + 562503202.

It is an arithmetic number, because the mean of its divisors is an integer number (562503202).

Almost surely, 2^1125006403 is an apocalyptic number.

1125006403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1125006403 is an equidigital number, since it uses as much as digits as its factorization.

1125006403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1125006403 is about 33541.1151126494. The cubic root of 1125006403 is about 1040.0438846743.

The spelling of 1125006403 in words is "one billion, one hundred twenty-five million, six thousand, four hundred three".