1530143145 has 24 divisors (see below), whose sum is σ = 2688586056. Its totient is φ = 804895488.

The previous prime is 1530143141. The next prime is 1530143171. The reversal of 1530143145 is 5413410351.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1411344 + 1528731801 = 1188^2 + 39099^2 .

It is not a de Polignac number, because 1530143145 - 2² = 1530143141 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1530143141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229614 + ... + 236183.

It is an arithmetic number, because the mean of its divisors is an integer number (112024419).

Almost surely, 2^1530143145 is an apocalyptic number.

1530143145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1530143145 is a deficient number, since it is larger than the sum of its proper divisors (1158442911).

1530143145 is a wasteful number, since it uses less digits than its factorization.

1530143145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465881 (or 465878 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 1530143145 is about 39117.0441751419. The cubic root of 1530143145 is about 1152.3312871896.

Adding to 1530143145 its reverse (5413410351), we get a palindrome (6943553496).

The spelling of 1530143145 in words is "one billion, five hundred thirty million, one hundred forty-three thousand, one hundred forty-five".