128946145 has 8 divisors (see below), whose sum is σ = 158027904. Its totient is φ = 100961904.

The previous prime is 128946133. The next prime is 128946157. The reversal of 128946145 is 541649821.

It is an interprime number because it is at equal distance from previous prime (128946133) and next prime (128946157).

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

It is a cyclic number.

It is not a de Polignac number, because 128946145 - 2⁵ = 128946113 is a prime.

It is a super-2 number, since 2×128946145² = 33254216620722050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 128946098 and 128946107.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274119 + ... + 274588.

It is an arithmetic number, because the mean of its divisors is an integer number (19753488).

Almost surely, 2^128946145 is an apocalyptic number.

It is an amenable number.

128946145 is a deficient number, since it is larger than the sum of its proper divisors (29081759).

128946145 is an equidigital number, since it uses as much as digits as its factorization.

128946145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548759.

The product of its digits is 69120, while the sum is 40.

The square root of 128946145 is about 11355.4456099265. The cubic root of 128946145 is about 505.2071104213.

The spelling of 128946145 in words is "one hundred twenty-eight million, nine hundred forty-six thousand, one hundred forty-five".