169243149 has 8 divisors (see below), whose sum is σ = 225720352. Its totient is φ = 112797360.

The previous prime is 169243147. The next prime is 169243157. The reversal of 169243149 is 941342961.

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

It is not a de Polignac number, because 169243149 - 2¹ = 169243147 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (169243147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11619 + ... + 21759.

It is an arithmetic number, because the mean of its divisors is an integer number (28215044).

Almost surely, 2^169243149 is an apocalyptic number.

It is an amenable number.

169243149 is a deficient number, since it is larger than the sum of its proper divisors (56477203).

169243149 is a wasteful number, since it uses less digits than its factorization.

169243149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15707.

The product of its digits is 46656, while the sum is 39.

The square root of 169243149 is about 13009.3485232736. The cubic root of 169243149 is about 553.1425054053.

The spelling of 169243149 in words is "one hundred sixty-nine million, two hundred forty-three thousand, one hundred forty-nine".