69145448 has 8 divisors (see below), whose sum is σ = 129647730. Its totient is φ = 34572720.

The previous prime is 69145403. The next prime is 69145451. The reversal of 69145448 is 84454196.

It can be written as a sum of positive squares in only one way, i.e., 58400164 + 10745284 = 7642^2 + 3278^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4321583 + ... + 4321598.

Almost surely, 2^69145448 is an apocalyptic number.

It is an amenable number.

69145448 is a deficient number, since it is larger than the sum of its proper divisors (60502282).

69145448 is a wasteful number, since it uses less digits than its factorization.

69145448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8643187 (or 8643183 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 69145448 is about 8315.3741948273. The cubic root of 69145448 is about 410.4445861475. Note that the first 3 decimals are identical.

The spelling of 69145448 in words is "sixty-nine million, one hundred forty-five thousand, four hundred forty-eight".