169420753 has 2 divisors, whose sum is σ = 169420754. Its totient is φ = 169420752.

The previous prime is 169420751. The next prime is 169420837. The reversal of 169420753 is 357024961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99062209 + 70358544 = 9953^2 + 8388^2 .

It is an emirp because it is prime and its reverse (357024961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 169420753 - 2¹ = 169420751 is a prime.

It is a super-3 number, since 3×169420753³ (a number of 26 digits) contains 333 as substring.

Together with 169420751, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (169420751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84710376 + 84710377.

It is an arithmetic number, because the mean of its divisors is an integer number (84710377).

Almost surely, 2^169420753 is an apocalyptic number.

It is an amenable number.

169420753 is a deficient number, since it is larger than the sum of its proper divisors (1).

169420753 is an equidigital number, since it uses as much as digits as its factorization.

169420753 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 169420753 is about 13016.1727477781. The cubic root of 169420753 is about 553.3359272713.

The spelling of 169420753 in words is "one hundred sixty-nine million, four hundred twenty thousand, seven hundred fifty-three".