2061403 has 4 divisors (see below), whose sum is σ = 2182680. Its totient is φ = 1940128.

The previous prime is 2061391. The next prime is 2061413. The reversal of 2061403 is 3041602.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3041602 = 2 ⋅1520801.

It is a cyclic number.

It is not a de Polignac number, because 2061403 - 2¹³ = 2053211 is a prime.

It is a Duffinian number.

2061403 is a lucky number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (2061413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60613 + ... + 60646.

It is an arithmetic number, because the mean of its divisors is an integer number (545670).

2^2061403 is an apocalyptic number.

2061403 is a deficient number, since it is larger than the sum of its proper divisors (121277).

2061403 is a wasteful number, since it uses less digits than its factorization.

2061403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121276.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2061403 is about 1435.7586844592. The cubic root of 2061403 is about 127.2685124300.

The spelling of 2061403 in words is "two million, sixty-one thousand, four hundred three".