1151530120 has 32 divisors (see below), whose sum is σ = 2790247320. Its totient is φ = 425180160.

The previous prime is 1151530111. The next prime is 1151530147. The reversal of 1151530120 is 210351511.

It can be written as a sum of positive squares in 4 ways, for example, as 557243236 + 594286884 = 23606^2 + 24378^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1106721 + ... + 1107760.

Almost surely, 2^1151530120 is an apocalyptic number.

1151530120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1151530120 is an abundant number, since it is smaller than the sum of its proper divisors (1638717200).

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

1151530120 is a wasteful number, since it uses less digits than its factorization.

1151530120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214505 (or 2214501 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1151530120 is about 33934.2028048398. The cubic root of 1151530120 is about 1048.1540112217.

Adding to 1151530120 its reverse (210351511), we get a palindrome (1361881631).

The spelling of 1151530120 in words is "one billion, one hundred fifty-one million, five hundred thirty thousand, one hundred twenty".