2128453 has 2 divisors, whose sum is σ = 2128454. Its totient is φ = 2128452.

The previous prime is 2128447. The next prime is 2128463. The reversal of 2128453 is 3548212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1896129 + 232324 = 1377^2 + 482^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2128453 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 1 + 2¹⁹ + 8⁴ + 4⁵ + 5⁴ + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2128403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1064226 + 1064227.

It is an arithmetic number, because the mean of its divisors is an integer number (1064227).

2^2128453 is an apocalyptic number.

It is an amenable number.

2128453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2128453 is an equidigital number, since it uses as much as digits as its factorization.

2128453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 2128453 is about 1458.9218621982. The cubic root of 2128453 is about 128.6336782041.

The spelling of 2128453 in words is "two million, one hundred twenty-eight thousand, four hundred fifty-three".