1530145193 has 2 divisors, whose sum is σ = 1530145194. Its totient is φ = 1530145192.

The previous prime is 1530145187. The next prime is 1530145277. The reversal of 1530145193 is 3915410351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1435121689 + 95023504 = 37883^2 + 9748^2 .

It is a cyclic number.

It is not a de Polignac number, because 1530145193 - 2¹⁶ = 1530079657 is a prime.

It is a super-2 number, since 2×1530145193² = 4682688623322014498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1530145103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765072596 + 765072597.

It is an arithmetic number, because the mean of its divisors is an integer number (765072597).

Almost surely, 2^1530145193 is an apocalyptic number.

It is an amenable number.

1530145193 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530145193 is an equidigital number, since it uses as much as digits as its factorization.

1530145193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 1530145193 is about 39117.0703529802. The cubic root of 1530145193 is about 1152.3318012970.

The spelling of 1530145193 in words is "one billion, five hundred thirty million, one hundred forty-five thousand, one hundred ninety-three".