69121161 has 16 divisors (see below), whose sum is σ = 104582400. Its totient is φ = 45099504.

The previous prime is 69121109. The next prime is 69121163. The reversal of 69121161 is 16112196.

It is not a de Polignac number, because 69121161 - 2⁶ = 69121097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (69121163) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25966 + ... + 28503.

It is an arithmetic number, because the mean of its divisors is an integer number (6536400).

Almost surely, 2^69121161 is an apocalyptic number.

It is an amenable number.

69121161 is a deficient number, since it is larger than the sum of its proper divisors (35461239).

69121161 is a wasteful number, since it uses less digits than its factorization.

69121161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54525 (or 54519 counting only the distinct ones).

The product of its digits is 648, while the sum is 27.

The square root of 69121161 is about 8313.9136993356. The cubic root of 69121161 is about 410.3965249697.

The spelling of 69121161 in words is "sixty-nine million, one hundred twenty-one thousand, one hundred sixty-one".