1235090 has 16 divisors (see below), whose sum is σ = 2244888. Its totient is φ = 489216.

The previous prime is 1235083. The next prime is 1235093. The reversal of 1235090 is 905321.

It can be written as a sum of positive squares in 4 ways, for example, as 994009 + 241081 = 997^2 + 491^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1235093) 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, 584 + ... + 1676.

2^1235090 is an apocalyptic number.

1235090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1235090 is a deficient number, since it is larger than the sum of its proper divisors (1009798).

1235090 is a wasteful number, since it uses less digits than its factorization.

1235090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 1235090 is about 1111.3460307213. The cubic root of 1235090 is about 107.2917185827.

The spelling of 1235090 in words is "one million, two hundred thirty-five thousand, ninety".