169455047 has 2 divisors, whose sum is σ = 169455048. Its totient is φ = 169455046.

The previous prime is 169455043. The next prime is 169455049. The reversal of 169455047 is 740554961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 169455047 - 2² = 169455043 is a prime.

Together with 169455049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 169454995 and 169455013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (169455043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84727523 + 84727524.

It is an arithmetic number, because the mean of its divisors is an integer number (84727524).

Almost surely, 2^169455047 is an apocalyptic number.

169455047 is a deficient number, since it is larger than the sum of its proper divisors (1).

169455047 is an equidigital number, since it uses as much as digits as its factorization.

169455047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 169455047 is about 13017.4900422470. The cubic root of 169455047 is about 553.3732600099.

The spelling of 169455047 in words is "one hundred sixty-nine million, four hundred fifty-five thousand, forty-seven".