1129977 has 8 divisors (see below), whose sum is σ = 1674080. Its totient is φ = 753300.

The previous prime is 1129963. The next prime is 1129991. The reversal of 1129977 is 7799211.

It is an interprime number because it is at equal distance from previous prime (1129963) and next prime (1129991).

It is not a de Polignac number, because 1129977 - 2¹⁵ = 1097209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1129957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20899 + ... + 20952.

It is an arithmetic number, because the mean of its divisors is an integer number (209260).

2^1129977 is an apocalyptic number.

It is an amenable number.

1129977 is a deficient number, since it is larger than the sum of its proper divisors (544103).

1129977 is an equidigital number, since it uses as much as digits as its factorization.

1129977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41860 (or 41854 counting only the distinct ones).

The product of its digits is 7938, while the sum is 36.

The square root of 1129977 is about 1063.0037629284. The cubic root of 1129977 is about 104.1573370489.

The spelling of 1129977 in words is "one million, one hundred twenty-nine thousand, nine hundred seventy-seven".