1075561427 has 2 divisors, whose sum is σ = 1075561428. Its totient is φ = 1075561426.

The previous prime is 1075561391. The next prime is 1075561429. The reversal of 1075561427 is 7241655701.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1075561427 - 2⁶ = 1075561363 is a prime.

Together with 1075561429, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1075561429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537780713 + 537780714.

It is an arithmetic number, because the mean of its divisors is an integer number (537780714).

Almost surely, 2^1075561427 is an apocalyptic number.

1075561427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1075561427 is an equidigital number, since it uses as much as digits as its factorization.

1075561427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 38.

The square root of 1075561427 is about 32795.7531854355. The cubic root of 1075561427 is about 1024.5781097765.

The spelling of 1075561427 in words is "one billion, seventy-five million, five hundred sixty-one thousand, four hundred twenty-seven".