2135453 has 2 divisors, whose sum is σ = 2135454. Its totient is φ = 2135452.

The previous prime is 2135447. The next prime is 2135479. The reversal of 2135453 is 3545312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1530169 + 605284 = 1237^2 + 778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2135453 - 2⁸ = 2135197 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 3 + 5⁵ + 4 + 5⁹ + 3¹¹ .

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2135153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1067726 + 1067727.

It is an arithmetic number, because the mean of its divisors is an integer number (1067727).

2^2135453 is an apocalyptic number.

It is an amenable number.

2135453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2135453 is an equidigital number, since it uses as much as digits as its factorization.

2135453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1800, while the sum is 23.

The square root of 2135453 is about 1461.3189248073. The cubic root of 2135453 is about 128.7745395774.

The spelling of 2135453 in words is "two million, one hundred thirty-five thousand, four hundred fifty-three".