128513248 has 12 divisors (see below), whose sum is σ = 253010520. Its totient is φ = 64256608.

The previous prime is 128513243. The next prime is 128513249. The reversal of 128513248 is 842315821.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128513243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2007988 + ... + 2008051.

It is an arithmetic number, because the mean of its divisors is an integer number (21084210).

Almost surely, 2^128513248 is an apocalyptic number.

It is an amenable number.

128513248 is a deficient number, since it is larger than the sum of its proper divisors (124497272).

128513248 is an equidigital number, since it uses as much as digits as its factorization.

128513248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016049 (or 4016041 counting only the distinct ones).

The product of its digits is 15360, while the sum is 34.

The square root of 128513248 is about 11336.3683779242. The cubic root of 128513248 is about 504.6411174319.

The spelling of 128513248 in words is "one hundred twenty-eight million, five hundred thirteen thousand, two hundred forty-eight".