128264097 has 8 divisors (see below), whose sum is σ = 184174144. Its totient is φ = 78931728.

The previous prime is 128264083. The next prime is 128264107. The reversal of 128264097 is 790462821.

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

It is not a de Polignac number, because 128264097 - 2⁶ = 128264033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 3288823 = 128264097 / (1 + 2 + 8 + 2 + 6 + 4 + 0 + 9 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128264027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1644373 + ... + 1644450.

It is an arithmetic number, because the mean of its divisors is an integer number (23021768).

Almost surely, 2^128264097 is an apocalyptic number.

It is an amenable number.

128264097 is a deficient number, since it is larger than the sum of its proper divisors (55910047).

128264097 is a wasteful number, since it uses less digits than its factorization.

128264097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288839.

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 128264097 is about 11325.3740335585. The cubic root of 128264097 is about 504.3147874452.

Adding to 128264097 its sum of digits (39), we get a triangular number (128264136 = T₁₆₀₁₆).

128264097 divided by its sum of digits (39) gives a palindrome (3288823).

The spelling of 128264097 in words is "one hundred twenty-eight million, two hundred sixty-four thousand, ninety-seven".