1005225443 has 2 divisors, whose sum is σ = 1005225444. Its totient is φ = 1005225442.

The previous prime is 1005225407. The next prime is 1005225451. The reversal of 1005225443 is 3445225001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1005225443 - 2¹⁴ = 1005209059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1005225493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 502612721 + 502612722.

It is an arithmetic number, because the mean of its divisors is an integer number (502612722).

Almost surely, 2^1005225443 is an apocalyptic number.

1005225443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1005225443 is an equidigital number, since it uses as much as digits as its factorization.

1005225443 is an evil number, because the sum of its binary digits is even.

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

The square root of 1005225443 is about 31705.2904575877. The cubic root of 1005225443 is about 1001.7387891931.

It can be divided in two parts, 10052 and 25443, that multiplied together give a triangular number (255753036 = T₂₂₆₁₆).

The spelling of 1005225443 in words is "one billion, five million, two hundred twenty-five thousand, four hundred forty-three".