161170869 has 8 divisors (see below), whose sum is σ = 215448480. Its totient is φ = 107170256.

The previous prime is 161170861. The next prime is 161170879. The reversal of 161170869 is 968071161.

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 161170869 - 2³ = 161170861 is a prime.

It is a super-2 number, since 2×161170869² = 51952098028430322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161170861) 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, 67887 + ... + 70220.

It is an arithmetic number, because the mean of its divisors is an integer number (26931060).

Almost surely, 2^161170869 is an apocalyptic number.

It is an amenable number.

161170869 is a deficient number, since it is larger than the sum of its proper divisors (54277611).

161170869 is a wasteful number, since it uses less digits than its factorization.

161170869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138499.

The product of its (nonzero) digits is 18144, while the sum is 39.

The square root of 161170869 is about 12695.3089367687. The cubic root of 161170869 is about 544.2045675368.

The spelling of 161170869 in words is "one hundred sixty-one million, one hundred seventy thousand, eight hundred sixty-nine".