128472201 has 24 divisors (see below), whose sum is σ = 218015616. Its totient is φ = 71871840.

The previous prime is 128472191. The next prime is 128472257. The reversal of 128472201 is 102274821.

It is not a de Polignac number, because 128472201 - 2⁹ = 128471689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128472601) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48625 + ... + 51198.

It is an arithmetic number, because the mean of its divisors is an integer number (9083984).

Almost surely, 2^128472201 is an apocalyptic number.

128472201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

128472201 is a deficient number, since it is larger than the sum of its proper divisors (89543415).

128472201 is a wasteful number, since it uses less digits than its factorization.

128472201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99853 (or 99850 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 128472201 is about 11334.5578211062. The cubic root of 128472201 is about 504.5873844251.

The spelling of 128472201 in words is "one hundred twenty-eight million, four hundred seventy-two thousand, two hundred one".