128354501145 has 128 divisors (see below), whose sum is σ = 227017728000. Its totient is φ = 61549056000.

The previous prime is 128354501129. The next prime is 128354501147. The reversal of 128354501145 is 541105453821.

It is not a de Polignac number, because 128354501145 - 2⁴ = 128354501129 is a prime.

It is a super-2 number, since 2×128354501145² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (128354501147) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 560499891 + ... + 560500119.

It is an arithmetic number, because the mean of its divisors is an integer number (1773576000).

Almost surely, 2^128354501145 is an apocalyptic number.

128354501145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128354501145 is a deficient number, since it is larger than the sum of its proper divisors (98663226855).

128354501145 is a wasteful number, since it uses less digits than its factorization.

128354501145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 691.

The product of its (nonzero) digits is 96000, while the sum is 39.

Adding to 128354501145 its reverse (541105453821), we get a palindrome (669459954966).

The spelling of 128354501145 in words is "one hundred twenty-eight billion, three hundred fifty-four million, five hundred one thousand, one hundred forty-five".