1205425043 has 2 divisors, whose sum is σ = 1205425044. Its totient is φ = 1205425042.

The previous prime is 1205425033. The next prime is 1205425061. The reversal of 1205425043 is 3405245021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1205425043 - 2¹⁰ = 1205424019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1205425003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602712521 + 602712522.

It is an arithmetic number, because the mean of its divisors is an integer number (602712522).

Almost surely, 2^1205425043 is an apocalyptic number.

1205425043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205425043 is an equidigital number, since it uses as much as digits as its factorization.

1205425043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1205425043 is about 34719.2316015202. The cubic root of 1205425043 is about 1064.2575421354.

The spelling of 1205425043 in words is "one billion, two hundred five million, four hundred twenty-five thousand, forty-three".