1161381300 has 36 divisors (see below), whose sum is σ = 3360264096. Its totient is φ = 309701600.

The previous prime is 1161381269. The next prime is 1161381301. The reversal of 1161381300 is 31831611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161381301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1935336 + ... + 1935935.

Almost surely, 2^1161381300 is an apocalyptic number.

1161381300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161381300 is an abundant number, since it is smaller than the sum of its proper divisors (2198882796).

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

1161381300 is a wasteful number, since it uses less digits than its factorization.

1161381300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871288 (or 3871281 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1161381300 is about 34079.0448809822. The cubic root of 1161381300 is about 1051.1344654430.

The spelling of 1161381300 in words is "one billion, one hundred sixty-one million, three hundred eighty-one thousand, three hundred".