1909053 has 6 divisors (see below), whose sum is σ = 2757534. Its totient is φ = 1272696.

The previous prime is 1909051. The next prime is 1909079. The reversal of 1909053 is 3509091.

It can be written as a sum of positive squares in only one way, i.e., 1172889 + 736164 = 1083^2 + 858^2 .

It is not a de Polignac number, because 1909053 - 2¹ = 1909051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1909051) 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 5 ways as a sum of consecutive naturals, for example, 106050 + ... + 106067.

It is an arithmetic number, because the mean of its divisors is an integer number (459589).

2^1909053 is an apocalyptic number.

It is an amenable number.

1909053 is a deficient number, since it is larger than the sum of its proper divisors (848481).

1909053 is a wasteful number, since it uses less digits than its factorization.

1909053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212123 (or 212120 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 1909053 is about 1381.6848410546. The cubic root of 1909053 is about 124.0526354759.

The spelling of 1909053 in words is "one million, nine hundred nine thousand, fifty-three".