1161613828 has 24 divisors (see below), whose sum is σ = 2056404672. Its totient is φ = 574094304.

The previous prime is 1161613819. The next prime is 1161613829. The reversal of 1161613828 is 8283161611.

It is not an unprimeable number, because it can be changed into a prime (1161613829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205650 + ... + 211222.

It is an arithmetic number, because the mean of its divisors is an integer number (85683528).

Almost surely, 2^1161613828 is an apocalyptic number.

It is an amenable number.

1161613828 is a deficient number, since it is larger than the sum of its proper divisors (894790844).

1161613828 is a wasteful number, since it uses less digits than its factorization.

1161613828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6171 (or 6169 counting only the distinct ones).

The product of its digits is 13824, while the sum is 37.

The square root of 1161613828 is about 34082.4563081947. The cubic root of 1161613828 is about 1051.2046123403.

The spelling of 1161613828 in words is "one billion, one hundred sixty-one million, six hundred thirteen thousand, eight hundred twenty-eight".