11172061 has 2 divisors, whose sum is σ = 11172062. Its totient is φ = 11172060.

The previous prime is 11172023. The next prime is 11172071. The reversal of 11172061 is 16027111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9803161 + 1368900 = 3131^2 + 1170^2 .

It is a cyclic number.

It is not a de Polignac number, because 11172061 - 2⁷ = 11171933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11172001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5586030 + 5586031.

It is an arithmetic number, because the mean of its divisors is an integer number (5586031).

Almost surely, 2^11172061 is an apocalyptic number.

It is an amenable number.

11172061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11172061 is an equidigital number, since it uses as much as digits as its factorization.

11172061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 11172061 is about 3342.4633131868. The cubic root of 11172061 is about 223.5515915379.

Adding to 11172061 its reverse (16027111), we get a palindrome (27199172).

The spelling of 11172061 in words is "eleven million, one hundred seventy-two thousand, sixty-one".