1051249547 has 2 divisors, whose sum is σ = 1051249548. Its totient is φ = 1051249546.

The previous prime is 1051249543. The next prime is 1051249561. The reversal of 1051249547 is 7459421501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1051249547 - 2² = 1051249543 is a prime.

It is a super-2 number, since 2×1051249547² = 2210251220135410418, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1051249547.

It is not a weakly prime, because it can be changed into another prime (1051249543) 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, 525624773 + 525624774.

It is an arithmetic number, because the mean of its divisors is an integer number (525624774).

Almost surely, 2^1051249547 is an apocalyptic number.

1051249547 is a deficient number, since it is larger than the sum of its proper divisors (1).

1051249547 is an equidigital number, since it uses as much as digits as its factorization.

1051249547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 38.

The square root of 1051249547 is about 32422.9786879614. The cubic root of 1051249547 is about 1016.7993827043.

The spelling of 1051249547 in words is "one billion, fifty-one million, two hundred forty-nine thousand, five hundred forty-seven".