3128601 has 12 divisors (see below), whose sum is σ = 4852752. Its totient is φ = 1787688.

The previous prime is 3128599. The next prime is 3128611. The reversal of 3128601 is 1068213.

It is not a de Polignac number, because 3128601 - 2¹ = 3128599 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

3128601 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3128611) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10495 + ... + 10788.

It is an arithmetic number, because the mean of its divisors is an integer number (404396).

Almost surely, 2^3128601 is an apocalyptic number.

It is an amenable number.

3128601 is a deficient number, since it is larger than the sum of its proper divisors (1724151).

3128601 is a wasteful number, since it uses less digits than its factorization.

3128601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21300 (or 21293 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 3128601 is about 1768.7851763287. The cubic root of 3128601 is about 146.2570220896.

The spelling of 3128601 in words is "three million, one hundred twenty-eight thousand, six hundred one".