1145251530 has 24 divisors (see below), whose sum is σ = 2977654212. Its totient is φ = 305400384.

The previous prime is 1145251519. The next prime is 1145251559. The reversal of 1145251530 is 351525411.

1145251530 is a `hidden beast` number, since 1 + 145 + 2 + 515 + 3 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1138455081 + 6796449 = 33741^2 + 2607^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1145251494 and 1145251503.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6362419 + ... + 6362598.

Almost surely, 2^1145251530 is an apocalyptic number.

1145251530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1145251530 is an abundant number, since it is smaller than the sum of its proper divisors (1832402682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1145251530 is a wasteful number, since it uses less digits than its factorization.

1145251530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12725030 (or 12725027 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 27.

The square root of 1145251530 is about 33841.5651233804. The cubic root of 1145251530 is about 1046.2455573781.

Adding to 1145251530 its reverse (351525411), we get a palindrome (1496776941).

The spelling of 1145251530 in words is "one billion, one hundred forty-five million, two hundred fifty-one thousand, five hundred thirty".