1155131210 has 8 divisors (see below), whose sum is σ = 2079236196. Its totient is φ = 462052480.

The previous prime is 1155131209. The next prime is 1155131227. The reversal of 1155131210 is 121315511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 931897729 + 223233481 = 30527^2 + 14941^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1155131210² = 2668656224632128200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57756551 + ... + 57756570.

Almost surely, 2^1155131210 is an apocalyptic number.

1155131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155131210 is a deficient number, since it is larger than the sum of its proper divisors (924104986).

1155131210 is a wasteful number, since it uses less digits than its factorization.

1155131210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115513128.

The product of its (nonzero) digits is 150, while the sum is 20.

The square root of 1155131210 is about 33987.2212750616. The cubic root of 1155131210 is about 1049.2454775878.

Adding to 1155131210 its reverse (121315511), we get a palindrome (1276446721).

The spelling of 1155131210 in words is "one billion, one hundred fifty-five million, one hundred thirty-one thousand, two hundred ten".