1131977 has 16 divisors (see below), whose sum is σ = 1440384. Its totient is φ = 864000.

The previous prime is 1131973. The next prime is 1131997. The reversal of 1131977 is 7791311.

It is a cyclic number.

It is not a de Polignac number, because 1131977 - 2² = 1131973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131973) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4577 + ... + 4817.

It is an arithmetic number, because the mean of its divisors is an integer number (90024).

2^1131977 is an apocalyptic number.

It is an amenable number.

1131977 is a deficient number, since it is larger than the sum of its proper divisors (308407).

1131977 is a wasteful number, since it uses less digits than its factorization.

1131977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320.

The product of its digits is 1323, while the sum is 29.

The square root of 1131977 is about 1063.9440774778. The cubic root of 1131977 is about 104.2187518366.

The spelling of 1131977 in words is "one million, one hundred thirty-one thousand, nine hundred seventy-seven".