2013401 has 4 divisors (see below), whose sum is σ = 2168292.
Its totient is φ = 1858512.
The previous prime is 2013391. The next prime is 2013409. The reversal of 2013401 is 1043102.
It is a happy number.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1043102 = 2 ⋅521551.
It can be written as a sum of positive squares in 2 ways, for example, as 855625 + 1157776 = 925^2 + 1076^2
It is a cyclic number.
It is not a de Polignac number, because 2013401 - 26 = 2013337 is a prime.
It is a Duffinian number.
It is not an unprimeable number, because it can be changed into a prime (2013409) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77426 + ... + 77451.
It is an arithmetic number, because the mean of its divisors is an integer number (542073).
22013401 is an apocalyptic number.
It is an amenable number.
2013401 is a deficient number, since it is larger than the sum of its proper divisors (154891).
2013401 is a wasteful number, since it uses less digits than its factorization.
2013401 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 154890.
The product of its (nonzero) digits is 24, while the sum is 11.
The square root of 2013401 is about 1418.9436211492.
The cubic root of 2013401 is about 126.2728821708.
Adding to 2013401 its reverse (1043102), we get a palindrome (3056503).
Subtracting from 2013401 its reverse (1043102), we obtain a cube (970299 = 993).
The spelling of 2013401 in words is "two million, thirteen thousand, four hundred one".