1161052173 has 6 divisors (see below), whose sum is σ = 1677075374. Its totient is φ = 774034776.

The previous prime is 1161052169. The next prime is 1161052199. The reversal of 1161052173 is 3712501611.

1161052173 is a `hidden beast` number, since 11 + 61 + 0 + 521 + 73 = 666.

It can be written as a sum of positive squares in only one way, i.e., 824953284 + 336098889 = 28722^2 + 18333^2 .

It is not a de Polignac number, because 1161052173 - 2² = 1161052169 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161052163) 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, 64502890 + ... + 64502907.

Almost surely, 2^1161052173 is an apocalyptic number.

It is an amenable number.

1161052173 is a deficient number, since it is larger than the sum of its proper divisors (516023201).

1161052173 is a wasteful number, since it uses less digits than its factorization.

1161052173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129005803 (or 129005800 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 27.

The square root of 1161052173 is about 34074.2156622863. The cubic root of 1161052173 is about 1051.0351614450.

Adding to 1161052173 its reverse (3712501611), we get a palindrome (4873553784).

The spelling of 1161052173 in words is "one billion, one hundred sixty-one million, fifty-two thousand, one hundred seventy-three".