1161246120 has 64 divisors (see below), whose sum is σ = 3487000320. Its totient is φ = 309375744.

The previous prime is 1161246071. The next prime is 1161246127. The reversal of 1161246120 is 216421611.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1161246127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144529 + ... + 152351.

It is an arithmetic number, because the mean of its divisors is an integer number (54484380).

Almost surely, 2^1161246120 is an apocalyptic number.

1161246120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161246120 is an abundant number, since it is smaller than the sum of its proper divisors (2325754200).

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

1161246120 is a wasteful number, since it uses less digits than its factorization.

1161246120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9074 (or 9070 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 1161246120 is about 34077.0614930337. The cubic root of 1161246120 is about 1051.0936812864.

Adding to 1161246120 its reverse (216421611), we get a palindrome (1377667731).

The spelling of 1161246120 in words is "one billion, one hundred sixty-one million, two hundred forty-six thousand, one hundred twenty".