169000905 has 8 divisors (see below), whose sum is σ = 270401472. Its totient is φ = 90133808.

The previous prime is 169000891. The next prime is 169000921. The reversal of 169000905 is 509000961.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 169000905 - 2⁴ = 169000889 is a prime.

It is a super-2 number, since 2×169000905² = 57122611781638050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5633349 + ... + 5633378.

It is an arithmetic number, because the mean of its divisors is an integer number (33800184).

Almost surely, 2^169000905 is an apocalyptic number.

169000905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

169000905 is a deficient number, since it is larger than the sum of its proper divisors (101400567).

169000905 is a wasteful number, since it uses less digits than its factorization.

169000905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266735.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 169000905 is about 13000.0348076457. The cubic root of 169000905 is about 552.8784682579.

The spelling of 169000905 in words is "one hundred sixty-nine million, nine hundred five", and thus it is an aban number.