169448453 has 4 divisors (see below), whose sum is σ = 169505868. Its totient is φ = 169391040.

The previous prime is 169448431. The next prime is 169448467. The reversal of 169448453 is 354844961.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 85414564 + 84033889 = 9242^2 + 9167^2 .

It is a cyclic number.

It is not a de Polignac number, because 169448453 - 2¹⁰ = 169447429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169448953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24026 + ... + 30267.

It is an arithmetic number, because the mean of its divisors is an integer number (42376467).

Almost surely, 2^169448453 is an apocalyptic number.

It is an amenable number.

169448453 is a deficient number, since it is larger than the sum of its proper divisors (57415).

169448453 is an equidigital number, since it uses as much as digits as its factorization.

169448453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57414.

The product of its digits is 414720, while the sum is 44.

The square root of 169448453 is about 13017.2367651510. The cubic root of 169448453 is about 553.3660821168.

The spelling of 169448453 in words is "one hundred sixty-nine million, four hundred forty-eight thousand, four hundred fifty-three".