1148261530 has 32 divisors (see below), whose sum is σ = 2256370704. Its totient is φ = 418162176.

The previous prime is 1148261519. The next prime is 1148261533. The reversal of 1148261530 is 351628411.

It can be written as a sum of positive squares in 8 ways, for example, as 314033841 + 834227689 = 17721^2 + 28883^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1148261492 and 1148261501.

It is not an unprimeable number, because it can be changed into a prime (1148261533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51009 + ... + 69988.

Almost surely, 2^1148261530 is an apocalyptic number.

1148261530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1148261530 is a deficient number, since it is larger than the sum of its proper divisors (1108109174).

1148261530 is a wasteful number, since it uses less digits than its factorization.

1148261530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121090.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 1148261530 is about 33886.0078793593. The cubic root of 1148261530 is about 1047.1613515981.

Adding to 1148261530 its reverse (351628411), we get a palindrome (1499889941).

The spelling of 1148261530 in words is "one billion, one hundred forty-eight million, two hundred sixty-one thousand, five hundred thirty".