69147128 has 16 divisors (see below), whose sum is σ = 130511760. Its totient is φ = 34344000.

The previous prime is 69147119. The next prime is 69147161. The reversal of 69147128 is 82174196.

It is a junction number, because it is equal to n+sod(n) for n = 69147091 and 69147100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27413 + ... + 29828.

It is an arithmetic number, because the mean of its divisors is an integer number (8156985).

Almost surely, 2^69147128 is an apocalyptic number.

It is an amenable number.

69147128 is a deficient number, since it is larger than the sum of its proper divisors (61364632).

69147128 is a wasteful number, since it uses less digits than its factorization.

69147128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57398 (or 57394 counting only the distinct ones).

The product of its digits is 24192, while the sum is 38.

The square root of 69147128 is about 8315.4752119166. The cubic root of 69147128 is about 410.4479102580.

The spelling of 69147128 in words is "sixty-nine million, one hundred forty-seven thousand, one hundred twenty-eight".