69130249 has 6 divisors (see below), whose sum is σ = 72267146. Its totient is φ = 66124080.

The previous prime is 69130247. The next prime is 69130253. The reversal of 69130249 is 94203196.

It can be written as a sum of positive squares in only one way, i.e., 61512649 + 7617600 = 7843^2 + 2760^2 .

It is not a de Polignac number, because 69130249 - 2¹ = 69130247 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69130247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64812 + ... + 65869.

Almost surely, 2^69130249 is an apocalyptic number.

It is an amenable number.

69130249 is a deficient number, since it is larger than the sum of its proper divisors (3136897).

69130249 is a wasteful number, since it uses less digits than its factorization.

69130249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130727 (or 130704 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 69130249 is about 8314.4602350363. The cubic root of 69130249 is about 410.4145103938.

The spelling of 69130249 in words is "sixty-nine million, one hundred thirty thousand, two hundred forty-nine".