128020154 has 8 divisors (see below), whose sum is σ = 192313440. Its totient is φ = 63915676.

The previous prime is 128020153. The next prime is 128020169. The reversal of 128020154 is 451020821.

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

It is not an unprimeable number, because it can be changed into a prime (128020153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45494 + ... + 48225.

It is an arithmetic number, because the mean of its divisors is an integer number (24039180).

Almost surely, 2^128020154 is an apocalyptic number.

128020154 is a deficient number, since it is larger than the sum of its proper divisors (64293286).

128020154 is an equidigital number, since it uses as much as digits as its factorization.

128020154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94404.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 128020154 is about 11314.5991533063. The cubic root of 128020154 is about 503.9948690374.

Adding to 128020154 its reverse (451020821), we get a palindrome (579040975).

The spelling of 128020154 in words is "one hundred twenty-eight million, twenty thousand, one hundred fifty-four".