69222161 has 4 divisors (see below), whose sum is σ = 69400500. Its totient is φ = 69043824.

The previous prime is 69222143. The next prime is 69222169. The reversal of 69222161 is 16122296.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32547025 + 36675136 = 5705^2 + 6056^2 .

It is a cyclic number.

It is not a de Polignac number, because 69222161 - 2¹⁰ = 69221137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69222169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88586 + ... + 89363.

It is an arithmetic number, because the mean of its divisors is an integer number (17350125).

Almost surely, 2^69222161 is an apocalyptic number.

It is an amenable number.

69222161 is a deficient number, since it is larger than the sum of its proper divisors (178339).

69222161 is a wasteful number, since it uses less digits than its factorization.

69222161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178338.

The product of its digits is 2592, while the sum is 29.

The square root of 69222161 is about 8319.9856370068. The cubic root of 69222161 is about 410.5963184716.

The spelling of 69222161 in words is "sixty-nine million, two hundred twenty-two thousand, one hundred sixty-one".