1121090 has 16 divisors (see below), whose sum is σ = 2047680. Its totient is φ = 441840.

The previous prime is 1121083. The next prime is 1121093. The reversal of 1121090 is 901211.

It is not an unprimeable number, because it can be changed into a prime (1121093) 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, 80 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (127980).

2^1121090 is an apocalyptic number.

1121090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121090 is a deficient number, since it is larger than the sum of its proper divisors (926590).

1121090 is a wasteful number, since it uses less digits than its factorization.

1121090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1121090 is about 1058.8153757856. The cubic root of 1121090 is about 103.8835605102.

The spelling of 1121090 in words is "one million, one hundred twenty-one thousand, ninety".