1090949 has 2 divisors, whose sum is σ = 1090950. Its totient is φ = 1090948.

The previous prime is 1090939. The next prime is 1090963. The reversal of 1090949 is 9490901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 368449 = 850^2 + 607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1090949 - 2¹⁶ = 1025413 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1090909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545474 + 545475.

It is an arithmetic number, because the mean of its divisors is an integer number (545475).

2^1090949 is an apocalyptic number.

It is an amenable number.

1090949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1090949 is an equidigital number, since it uses as much as digits as its factorization.

1090949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 32.

The square root of 1090949 is about 1044.4850405822. The cubic root of 1090949 is about 102.9441051556.

The spelling of 1090949 in words is "one million, ninety thousand, nine hundred forty-nine".