11990061 has 12 divisors (see below), whose sum is σ = 18072288. Its totient is φ = 7645704.

The previous prime is 11990053. The next prime is 11990063. The reversal of 11990061 is 16009911.

It is not a de Polignac number, because 11990061 - 2³ = 11990053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11990063) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28755 + ... + 29168.

It is an arithmetic number, because the mean of its divisors is an integer number (1506024).

Almost surely, 2^11990061 is an apocalyptic number.

It is an amenable number.

11990061 is a deficient number, since it is larger than the sum of its proper divisors (6082227).

11990061 is a wasteful number, since it uses less digits than its factorization.

11990061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57952 (or 57949 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 11990061 is about 3462.6667468874. Note that the first 3 decimals coincide. The cubic root of 11990061 is about 228.8796237474.

Adding to 11990061 its reverse (16009911), we get a palindrome (27999972).

The spelling of 11990061 in words is "eleven million, nine hundred ninety thousand, sixty-one".