1151530216 has 32 divisors (see below), whose sum is σ = 2240064000. Its totient is φ = 554368320.

The previous prime is 1151530201. The next prime is 1151530249. The reversal of 1151530216 is 6120351511.

It is a happy number.

It is a super-2 number, since 2×1151530216² = 2652043676722013312, which contains 22 as substring.

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, 37686 + ... + 61018.

It is an arithmetic number, because the mean of its divisors is an integer number (70002000).

Almost surely, 2^1151530216 is an apocalyptic number.

It is an amenable number.

1151530216 is a deficient number, since it is larger than the sum of its proper divisors (1088533784).

1151530216 is a wasteful number, since it uses less digits than its factorization.

1151530216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23569 (or 23565 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 1151530216 is about 33934.2042193419. The cubic root of 1151530216 is about 1048.1540403489.

Adding to 1151530216 its reverse (6120351511), we get a palindrome (7271881727).

The spelling of 1151530216 in words is "one billion, one hundred fifty-one million, five hundred thirty thousand, two hundred sixteen".