1138090 has 8 divisors (see below), whose sum is σ = 2048580. Its totient is φ = 455232.

The previous prime is 1138061. The next prime is 1138091. The reversal of 1138090 is 908311.

It can be written as a sum of positive squares in 2 ways, for example, as 1104601 + 33489 = 1051^2 + 183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1138091) 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 in 3 ways as a sum of consecutive naturals, for example, 56895 + ... + 56914.

2^1138090 is an apocalyptic number.

1138090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1138090 is a deficient number, since it is larger than the sum of its proper divisors (910490).

1138090 is a wasteful number, since it uses less digits than its factorization.

1138090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113816.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1138090 is about 1066.8130107943. The cubic root of 1138090 is about 104.4060188443.

The spelling of 1138090 in words is "one million, one hundred thirty-eight thousand, ninety".