1155061 has 2 divisors, whose sum is σ = 1155062. Its totient is φ = 1155060.

The previous prime is 1155053. The next prime is 1155071. The reversal of 1155061 is 1605511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 398161 = 870^2 + 631^2 .

It is an emirp because it is prime and its reverse (1605511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1155061 - 2³ = 1155053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1155001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577530 + 577531.

It is an arithmetic number, because the mean of its divisors is an integer number (577531).

2^1155061 is an apocalyptic number.

1155061 is the 621-st hex number.

It is an amenable number.

1155061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1155061 is an equidigital number, since it uses as much as digits as its factorization.

1155061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 19.

The square root of 1155061 is about 1074.7376424039. The cubic root of 1155061 is about 104.9224219103.

It can be divided in two parts, 11550 and 61, that added together give a palindrome (11611).

The spelling of 1155061 in words is "one million, one hundred fifty-five thousand, sixty-one".