11992061 has 2 divisors, whose sum is σ = 11992062. Its totient is φ = 11992060.

The previous prime is 11992037. The next prime is 11992063. The reversal of 11992061 is 16029911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11689561 + 302500 = 3419^2 + 550^2 .

It is a cyclic number.

It is not a de Polignac number, because 11992061 - 2⁶ = 11991997 is a prime.

Together with 11992063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11992063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5996030 + 5996031.

It is an arithmetic number, because the mean of its divisors is an integer number (5996031).

Almost surely, 2^11992061 is an apocalyptic number.

It is an amenable number.

11992061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11992061 is an equidigital number, since it uses as much as digits as its factorization.

11992061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 11992061 is about 3462.9555296018. The cubic root of 11992061 is about 228.8923491149.

The spelling of 11992061 in words is "eleven million, nine hundred ninety-two thousand, sixty-one".