1953109 has 2 divisors, whose sum is σ = 1953110. Its totient is φ = 1953108.

The previous prime is 1953101. The next prime is 1953151. The reversal of 1953109 is 9013591.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1830609 + 122500 = 1353^2 + 350^2 .

It is a cyclic number.

It is not a de Polignac number, because 1953109 - 2³ = 1953101 is a prime.

It is a plaindrome in base 11.

It is a zygodrome in base 11.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1953101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 976554 + 976555.

It is an arithmetic number, because the mean of its divisors is an integer number (976555).

2^1953109 is an apocalyptic number.

It is an amenable number.

1953109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1953109 is an equidigital number, since it uses as much as digits as its factorization.

1953109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 1953109 is about 1397.5367615916. The cubic root of 1953109 is about 124.9996586657. Note that the first 3 decimals are identical.

The spelling of 1953109 in words is "one million, nine hundred fifty-three thousand, one hundred nine".