1150561 has 2 divisors, whose sum is σ = 1150562. Its totient is φ = 1150560.

The previous prime is 1150547. The next prime is 1150579. The reversal of 1150561 is 1650511.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 938961 + 211600 = 969^2 + 460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1150561 - 2¹¹ = 1148513 is a prime.

It is a super-2 number, since 2×1150561² = 2647581229442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1150511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 575280 + 575281.

It is an arithmetic number, because the mean of its divisors is an integer number (575281).

2^1150561 is an apocalyptic number.

It is an amenable number.

1150561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1150561 is an equidigital number, since it uses as much as digits as its factorization.

1150561 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1150561 is about 1072.6420651830. The cubic root of 1150561 is about 104.7859888908.

It can be divided in two parts, 1150 and 561, that added together give a triangular number (1711 = T₅₈).

The spelling of 1150561 in words is "one million, one hundred fifty thousand, five hundred sixty-one".