1911053 has 2 divisors, whose sum is σ = 1911054. Its totient is φ = 1911052.

The previous prime is 1911043. The next prime is 1911061. The reversal of 1911053 is 3501191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 964324 + 946729 = 982^2 + 973^2 .

It is a cyclic number.

It is not a de Polignac number, because 1911053 - 2⁴ = 1911037 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1911043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 955526 + 955527.

It is an arithmetic number, because the mean of its divisors is an integer number (955527).

2^1911053 is an apocalyptic number.

It is an amenable number.

1911053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1911053 is an equidigital number, since it uses as much as digits as its factorization.

1911053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 1911053 is about 1382.4084056457. The cubic root of 1911053 is about 124.0959411846.

The spelling of 1911053 in words is "one million, nine hundred eleven thousand, fifty-three".