2173453 has 2 divisors, whose sum is σ = 2173454. Its totient is φ = 2173452.

The previous prime is 2173447. The next prime is 2173487. The reversal of 2173453 is 3543712.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2082249 + 91204 = 1443^2 + 302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2173453 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 1 + 7⁶ + 3⁷ + 4⁸ + 5⁹ + 3⁷ .

2173453 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2173153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1086726 + 1086727.

It is an arithmetic number, because the mean of its divisors is an integer number (1086727).

2^2173453 is an apocalyptic number.

It is an amenable number.

2173453 is a deficient number, since it is larger than the sum of its proper divisors (1).

2173453 is an equidigital number, since it uses as much as digits as its factorization.

2173453 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2520, while the sum is 25.

The square root of 2173453 is about 1474.2635449607. The cubic root of 2173453 is about 129.5338929290.

The spelling of 2173453 in words is "two million, one hundred seventy-three thousand, four hundred fifty-three".