1161221708 has 24 divisors (see below), whose sum is σ = 2188845120. Its totient is φ = 537258960.

The previous prime is 1161221647. The next prime is 1161221713. The reversal of 1161221708 is 8071221611.

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, 174398 + ... + 180933.

It is an arithmetic number, because the mean of its divisors is an integer number (91201880).

Almost surely, 2^1161221708 is an apocalyptic number.

It is an amenable number.

1161221708 is a deficient number, since it is larger than the sum of its proper divisors (1027623412).

1161221708 is a wasteful number, since it uses less digits than its factorization.

1161221708 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355397 (or 355395 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 29.

The square root of 1161221708 is about 34076.7033029899. The cubic root of 1161221708 is about 1051.0863157853.

The spelling of 1161221708 in words is "one billion, one hundred sixty-one million, two hundred twenty-one thousand, seven hundred eight".