69489161 has 8 divisors (see below), whose sum is σ = 81263424. Its totient is φ = 58176720.

The previous prime is 69489127. The next prime is 69489163. The reversal of 69489161 is 16198496.

69489161 = 669² + 670² + ... + 797².

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

It is not a de Polignac number, because 69489161 - 2⁶ = 69489097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69489163) 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, 115130 + ... + 115731.

It is an arithmetic number, because the mean of its divisors is an integer number (10157928).

Almost surely, 2^69489161 is an apocalyptic number.

It is an amenable number.

69489161 is a deficient number, since it is larger than the sum of its proper divisors (11774263).

69489161 is a wasteful number, since it uses less digits than its factorization.

69489161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230911.

The product of its digits is 93312, while the sum is 44.

The square root of 69489161 is about 8336.0158948985. The cubic root of 69489161 is about 411.1235511995.

The spelling of 69489161 in words is "sixty-nine million, four hundred eighty-nine thousand, one hundred sixty-one".