169227473 has 4 divisors (see below), whose sum is σ = 169829988. Its totient is φ = 168624960.

The previous prime is 169227451. The next prime is 169227493. The reversal of 169227473 is 374722961.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 374722961 = 103 ⋅3638087.

It can be written as a sum of positive squares in 2 ways, for example, as 67782289 + 101445184 = 8233^2 + 10072^2 .

It is a cyclic number.

It is not a de Polignac number, because 169227473 - 2¹² = 169223377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 169227473.

It is not an unprimeable number, because it can be changed into a prime (169227413) 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, 300836 + ... + 301397.

It is an arithmetic number, because the mean of its divisors is an integer number (42457497).

Almost surely, 2^169227473 is an apocalyptic number.

It is an amenable number.

169227473 is a deficient number, since it is larger than the sum of its proper divisors (602515).

169227473 is an equidigital number, since it uses as much as digits as its factorization.

169227473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602514.

The product of its digits is 127008, while the sum is 41.

The square root of 169227473 is about 13008.7460195055. The cubic root of 169227473 is about 553.1254267629.

The spelling of 169227473 in words is "one hundred sixty-nine million, two hundred twenty-seven thousand, four hundred seventy-three".