1155253210 has 16 divisors (see below), whose sum is σ = 2081457000. Its totient is φ = 461656576.

The previous prime is 1155253201. The next prime is 1155253271. The reversal of 1155253210 is 123525511.

It can be written as a sum of positive squares in 4 ways, for example, as 1048399641 + 106853569 = 32379^2 + 10337^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44575 + ... + 65554.

Almost surely, 2^1155253210 is an apocalyptic number.

1155253210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1155253210 is a deficient number, since it is larger than the sum of its proper divisors (926203790).

1155253210 is a wasteful number, since it uses less digits than its factorization.

1155253210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111185.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 1155253210 is about 33989.0160198850. The cubic root of 1155253210 is about 1049.2824152219.

Adding to 1155253210 its reverse (123525511), we get a palindrome (1278778721).

The spelling of 1155253210 in words is "one billion, one hundred fifty-five million, two hundred fifty-three thousand, two hundred ten".