69209045 has 8 divisors (see below), whose sum is σ = 83096280. Its totient is φ = 55336960.

The previous prime is 69209011. The next prime is 69209053. The reversal of 69209045 is 54090296.

It can be written as a sum of positive squares in 4 ways, for example, as 30184036 + 39025009 = 5494^2 + 6247^2 .

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

It is not a de Polignac number, because 69209045 - 2¹⁶ = 69143509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 69208996 and 69209014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13205 + ... + 17685.

It is an arithmetic number, because the mean of its divisors is an integer number (10387035).

Almost surely, 2^69209045 is an apocalyptic number.

It is an amenable number.

69209045 is a deficient number, since it is larger than the sum of its proper divisors (13887235).

69209045 is a wasteful number, since it uses less digits than its factorization.

69209045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7575.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 69209045 is about 8319.1973771512. The cubic root of 69209045 is about 410.5703839953.

The spelling of 69209045 in words is "sixty-nine million, two hundred nine thousand, forty-five".