1161487 has 2 divisors, whose sum is σ = 1161488. Its totient is φ = 1161486.

The previous prime is 1161481. The next prime is 1161493. The reversal of 1161487 is 7841611.

It is a balanced prime because it is at equal distance from previous prime (1161481) and next prime (1161493).

It is a cyclic number.

It is not a de Polignac number, because 1161487 - 2¹⁵ = 1128719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1161481) 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 as a sum of consecutive naturals, namely, 580743 + 580744.

It is an arithmetic number, because the mean of its divisors is an integer number (580744).

2^1161487 is an apocalyptic number.

1161487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1161487 is an equidigital number, since it uses as much as digits as its factorization.

1161487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1344, while the sum is 28.

The square root of 1161487 is about 1077.7230627578. The cubic root of 1161487 is about 105.1166353202.

The spelling of 1161487 in words is "one million, one hundred sixty-one thousand, four hundred eighty-seven".