1161382810 has 48 divisors (see below), whose sum is σ = 2491148520. Its totient is φ = 388469760.

The previous prime is 1161382801. The next prime is 1161382811. The reversal of 1161382810 is 182831611.

It can be written as a sum of positive squares in 4 ways, for example, as 600593049 + 560789761 = 24507^2 + 23681^2 .

It is a super-2 number, since 2×1161382810² = 2697620062726992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1161382811) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8815 + ... + 48994.

Almost surely, 2^1161382810 is an apocalyptic number.

1161382810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161382810 is an abundant number, since it is smaller than the sum of its proper divisors (1329765710).

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

1161382810 is a wasteful number, since it uses less digits than its factorization.

1161382810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57871 (or 57864 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 1161382810 is about 34079.0670353518. The cubic root of 1161382810 is about 1051.1349209960.

The spelling of 1161382810 in words is "one billion, one hundred sixty-one million, three hundred eighty-two thousand, eight hundred ten".