2138601 has 8 divisors (see below), whose sum is σ = 2921184. Its totient is φ = 1390880.

The previous prime is 2138593. The next prime is 2138623. The reversal of 2138601 is 1068312.

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

It is a cyclic number.

It is not a de Polignac number, because 2138601 - 2³ = 2138593 is a prime.

It is a super-2 number, since 2×2138601² = 9147228474402, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2138671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8571 + ... + 8816.

It is an arithmetic number, because the mean of its divisors is an integer number (365148).

2^2138601 is an apocalyptic number.

It is an amenable number.

2138601 is a deficient number, since it is larger than the sum of its proper divisors (782583).

2138601 is a wasteful number, since it uses less digits than its factorization.

2138601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17431.

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

The square root of 2138601 is about 1462.3956373020. The cubic root of 2138601 is about 128.8377866127.

The spelling of 2138601 in words is "two million, one hundred thirty-eight thousand, six hundred one".