128962901 has 8 divisors (see below), whose sum is σ = 137876544. Its totient is φ = 120196800.

The previous prime is 128962879. The next prime is 128962921. The reversal of 128962901 is 109269821.

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

It is not a de Polignac number, because 128962901 - 2⁶ = 128962837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128962921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35075 + ... + 38576.

It is an arithmetic number, because the mean of its divisors is an integer number (17234568).

Almost surely, 2^128962901 is an apocalyptic number.

It is an amenable number.

128962901 is a deficient number, since it is larger than the sum of its proper divisors (8913643).

128962901 is a wasteful number, since it uses less digits than its factorization.

128962901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73771.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 128962901 is about 11356.1833817529. The cubic root of 128962901 is about 505.2289926412.

The spelling of 128962901 in words is "one hundred twenty-eight million, nine hundred sixty-two thousand, nine hundred one".