128062145 has 4 divisors (see below), whose sum is σ = 153674580. Its totient is φ = 102449712.

The previous prime is 128062133. The next prime is 128062153. The reversal of 128062145 is 541260821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541260821 = 8831 ⋅61291.

It can be written as a sum of positive squares in 2 ways, for example, as 13315201 + 114746944 = 3649^2 + 10712^2 .

It is a cyclic number.

It is not a de Polignac number, because 128062145 - 2²² = 123867841 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12806210 + ... + 12806219.

It is an arithmetic number, because the mean of its divisors is an integer number (38418645).

Almost surely, 2^128062145 is an apocalyptic number.

It is an amenable number.

128062145 is a deficient number, since it is larger than the sum of its proper divisors (25612435).

128062145 is an equidigital number, since it uses as much as digits as its factorization.

128062145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25612434.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 128062145 is about 11316.4546126426. The cubic root of 128062145 is about 504.0499669639.

The spelling of 128062145 in words is "one hundred twenty-eight million, sixty-two thousand, one hundred forty-five".