1161671052 has 18 divisors (see below), whose sum is σ = 2710841308. Its totient is φ = 387184328.

The previous prime is 1161671033. The next prime is 1161671059. The reversal of 1161671052 is 2501761611.

It is not an unprimeable number, because it can be changed into a prime (1161671059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 113149 + ... + 122987.

Almost surely, 2^1161671052 is an apocalyptic number.

1161671052 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1161671052 is an abundant number, since it is smaller than the sum of its proper divisors (1549170256).

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

1161671052 is an frugal number, since it uses more digits than its factorization.

1161671052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19685 (or 9844 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 1161671052 is about 34083.2957913404. The cubic root of 1161671052 is about 1051.2218737123.

The spelling of 1161671052 in words is "one billion, one hundred sixty-one million, six hundred seventy-one thousand, fifty-two".