1161235210 has 32 divisors (see below), whose sum is σ = 2191033152. Its totient is φ = 442619520.

The previous prime is 1161235199. The next prime is 1161235211. The reversal of 1161235210 is 125321611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1161235211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15304 + ... + 50563.

It is an arithmetic number, because the mean of its divisors is an integer number (68469786).

Almost surely, 2^1161235210 is an apocalyptic number.

1161235210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161235210 is a deficient number, since it is larger than the sum of its proper divisors (1029797942).

1161235210 is a wasteful number, since it uses less digits than its factorization.

1161235210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65958.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 1161235210 is about 34076.9014143012. The cubic root of 1161235210 is about 1051.0903895731.

Adding to 1161235210 its reverse (125321611), we get a palindrome (1286556821).

The spelling of 1161235210 in words is "one billion, one hundred sixty-one million, two hundred thirty-five thousand, two hundred ten".