1131790 has 16 divisors (see below), whose sum is σ = 2222640. Its totient is φ = 411520.

The previous prime is 1131787. The next prime is 1131799. The reversal of 1131790 is 971311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5035 + ... + 5254.

It is an arithmetic number, because the mean of its divisors is an integer number (138915).

2^1131790 is an apocalyptic number.

1131790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131790 is a deficient number, since it is larger than the sum of its proper divisors (1090850).

1131790 is a wasteful number, since it uses less digits than its factorization.

1131790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10307.

The product of its (nonzero) digits is 189, while the sum is 22.

The square root of 1131790 is about 1063.8561932893. The cubic root of 1131790 is about 104.2130126211.

The spelling of 1131790 in words is "one million, one hundred thirty-one thousand, seven hundred ninety".