128315154 has 16 divisors (see below), whose sum is σ = 279960480. Its totient is φ = 38883360.

The previous prime is 128315141. The next prime is 128315171. The reversal of 128315154 is 451513821.

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, 972019 + ... + 972150.

It is an arithmetic number, because the mean of its divisors is an integer number (17497530).

Almost surely, 2^128315154 is an apocalyptic number.

128315154 is an abundant number, since it is smaller than the sum of its proper divisors (151645326).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128315154 is a wasteful number, since it uses less digits than its factorization.

128315154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1944185.

The product of its digits is 4800, while the sum is 30.

The square root of 128315154 is about 11327.6279070245. The cubic root of 128315154 is about 504.3816946700.

Adding to 128315154 its reverse (451513821), we get a palindrome (579828975).

The spelling of 128315154 in words is "one hundred twenty-eight million, three hundred fifteen thousand, one hundred fifty-four".