1530047797 has 2 divisors, whose sum is σ = 1530047798. Its totient is φ = 1530047796.

The previous prime is 1530047741. The next prime is 1530047809. The reversal of 1530047797 is 7977400351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1516790916 + 13256881 = 38946^2 + 3641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530047797 - 2⁷ = 1530047669 is a prime.

It is a super-2 number, since 2×1530047797² = 4682092522209106418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530147797) 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, 765023898 + 765023899.

It is an arithmetic number, because the mean of its divisors is an integer number (765023899).

Almost surely, 2^1530047797 is an apocalyptic number.

It is an amenable number.

1530047797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530047797 is an equidigital number, since it uses as much as digits as its factorization.

1530047797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 185220, while the sum is 43.

The square root of 1530047797 is about 39115.8254035371. The cubic root of 1530047797 is about 1152.3073515715.

It can be divided in two parts, 153004 and 7797, that added together give a square (160801 = 401²).

The spelling of 1530047797 in words is "one billion, five hundred thirty million, forty-seven thousand, seven hundred ninety-seven".