11901061 has 4 divisors (see below), whose sum is σ = 11909772. Its totient is φ = 11892352.

The previous prime is 11901031. The next prime is 11901073. The reversal of 11901061 is 16010911.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10850436 + 1050625 = 3294^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 11901061 - 2¹³ = 11892869 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 (11901031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1810 + ... + 5203.

It is an arithmetic number, because the mean of its divisors is an integer number (2977443).

Almost surely, 2^11901061 is an apocalyptic number.

It is an amenable number.

11901061 is a deficient number, since it is larger than the sum of its proper divisors (8711).

11901061 is an equidigital number, since it uses as much as digits as its factorization.

11901061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8710.

The product of its (nonzero) digits is 54, while the sum is 19.

The square root of 11901061 is about 3449.7914429716. The cubic root of 11901061 is about 228.3119063962.

Adding to 11901061 its reverse (16010911), we get a palindrome (27911972).

The spelling of 11901061 in words is "eleven million, nine hundred one thousand, sixty-one".