1051489427 has 2 divisors, whose sum is σ = 1051489428. Its totient is φ = 1051489426.

The previous prime is 1051489399. The next prime is 1051489471. The reversal of 1051489427 is 7249841501.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1051489427 is a prime.

It is a super-2 number, since 2×1051489427² = 2211260030185576658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1051489927) 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, 525744713 + 525744714.

It is an arithmetic number, because the mean of its divisors is an integer number (525744714).

Almost surely, 2^1051489427 is an apocalyptic number.

1051489427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051489427 is an equidigital number, since it uses as much as digits as its factorization.

1051489427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 1051489427 is about 32426.6777052476. The cubic root of 1051489427 is about 1016.8767164787.

The spelling of 1051489427 in words is "one billion, fifty-one million, four hundred eighty-nine thousand, four hundred twenty-seven".