1162111061 has 8 divisors (see below), whose sum is σ = 1181733144. Its totient is φ = 1142507520.

The previous prime is 1162111051. The next prime is 1162111073. The reversal of 1162111061 is 1601112611.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 486423025 + 675688036 = 22055^2 + 25994^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1162111061 - 2¹⁴ = 1162094677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1162111051) 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, 188321 + ... + 194393.

It is an arithmetic number, because the mean of its divisors is an integer number (147716643).

Almost surely, 2^1162111061 is an apocalyptic number.

It is an amenable number.

1162111061 is a deficient number, since it is larger than the sum of its proper divisors (19622083).

1162111061 is an equidigital number, since it uses as much as digits as its factorization.

1162111061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9271.

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 1162111061 is about 34089.7500870863. The cubic root of 1162111061 is about 1051.3545815894.

Adding to 1162111061 its reverse (1601112611), we get a palindrome (2763223672).

The spelling of 1162111061 in words is "one billion, one hundred sixty-two million, one hundred eleven thousand, sixty-one".