69130945 has 8 divisors (see below), whose sum is σ = 89338536. Its totient is φ = 51050496.

The previous prime is 69130933. The next prime is 69130981. The reversal of 69130945 is 54903196.

It can be written as a sum of positive squares in 4 ways, for example, as 853776 + 68277169 = 924^2 + 8263^2 .

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 69130945 - 2⁵ = 69130913 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531712 + ... + 531841.

It is an arithmetic number, because the mean of its divisors is an integer number (11167317).

Almost surely, 2^69130945 is an apocalyptic number.

69130945 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

69130945 is a deficient number, since it is larger than the sum of its proper divisors (20207591).

69130945 is a wasteful number, since it uses less digits than its factorization.

69130945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1063571.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 69130945 is about 8314.5020897225. The cubic root of 69130945 is about 410.4158877336.

The spelling of 69130945 in words is "sixty-nine million, one hundred thirty thousand, nine hundred forty-five".