1196020181 has 4 divisors (see below), whose sum is σ = 1209458700. Its totient is φ = 1182581664.

The previous prime is 1196020121. The next prime is 1196020219. The reversal of 1196020181 is 1810206911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 143017681 + 1053002500 = 11959^2 + 32450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1196020181 - 2¹⁴ = 1196003797 is a prime.

It is a super-2 number, since 2×1196020181² = 2860928546718545522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1196020121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6719126 + ... + 6719303.

It is an arithmetic number, because the mean of its divisors is an integer number (302364675).

Almost surely, 2^1196020181 is an apocalyptic number.

It is an amenable number.

1196020181 is a deficient number, since it is larger than the sum of its proper divisors (13438519).

1196020181 is an equidigital number, since it uses as much as digits as its factorization.

1196020181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13438518.

The product of its (nonzero) digits is 864, while the sum is 29.

The square root of 1196020181 is about 34583.5247046914. The cubic root of 1196020181 is about 1061.4824934081.

The spelling of 1196020181 in words is "one billion, one hundred ninety-six million, twenty thousand, one hundred eighty-one".