11000061 has 6 divisors (see below), whose sum is σ = 15888990. Its totient is φ = 7333368.

The previous prime is 11000057. The next prime is 11000081. The reversal of 11000061 is 16000011.

It can be written as a sum of positive squares in only one way, i.e., 8732025 + 2268036 = 2955^2 + 1506^2 .

It is not a de Polignac number, because 11000061 - 2² = 11000057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1222229 = 11000061 / (1 + 1 + 0 + 0 + 0 + 0 + 6 + 1).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 611106 + ... + 611123.

It is an arithmetic number, because the mean of its divisors is an integer number (2648165).

Almost surely, 2^11000061 is an apocalyptic number.

It is an amenable number.

11000061 is a deficient number, since it is larger than the sum of its proper divisors (4888929).

11000061 is a wasteful number, since it uses less digits than its factorization.

11000061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222235 (or 1222232 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 11000061 is about 3316.6339864387. The cubic root of 11000061 is about 222.3984201555.

Adding to 11000061 its reverse (16000011), we get a palindrome (27000072).

The spelling of 11000061 in words is "eleven million, sixty-one", and thus it is an aban number and an uban number.